{"id":5307,"date":"2026-06-24T16:00:49","date_gmt":"2026-06-24T12:30:49","guid":{"rendered":"https:\/\/hamravesh.com\/blog\/?p=5307"},"modified":"2026-06-23T22:11:43","modified_gmt":"2026-06-23T18:41:43","slug":"what-is-high-availability","status":"publish","type":"post","link":"https:\/\/hamravesh.com\/blog\/what-is-high-availability\/","title":{"rendered":"\u0622\u0634\u0646\u0627\u06cc\u06cc \u0628\u0627 High Availability\u061b \u0628\u0631\u0631\u0633\u06cc \u0645\u0639\u0645\u0627\u0631\u06cc \u0648 \u062a\u0641\u0627\u0648\u062a HA \u0628\u0627 Disaster Recovery"},"content":{"rendered":"\n<p>\u062f\u0633\u062a\u0631\u0633\u06cc \u0645\u062f\u0627\u0648\u0645 \u0628\u0647 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0648 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0628\u0647 \u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0647\u0645\u200c\u062a\u0631\u06cc\u0646 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u200c\u0647\u0627\u06cc \u0645\u062f\u0631\u0646 \u062a\u0628\u062f\u06cc\u0644 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u062d\u062a\u06cc \u06a9\u0648\u062a\u0627\u0647\u200c\u0645\u062f\u062a \u06cc\u06a9 \u0633\u0631\u0648\u06cc\u0633 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0631 \u062a\u062c\u0631\u0628\u0647 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646\u060c \u062a\u062f\u0627\u0648\u0645 \u0641\u0639\u0627\u0644\u06cc\u062a \u0633\u0627\u0632\u0645\u0627\u0646 \u0648 \u062a\u0639\u0647\u062f\u0627\u062a SLA \u062a\u0623\u062b\u06cc\u0631 \u0628\u06af\u0630\u0627\u0631\u062f. \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644\u060c \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0633\u0627\u0632\u0645\u0627\u0646\u200c\u0647\u0627 \u0627\u0632 \u0645\u0639\u0645\u0627\u0631\u06cc\u200c\u0647\u0627\u06cc High Availability (\u06cc\u0627 \u0628\u0647 \u0627\u062e\u062a\u0635\u0627\u0631 HA) \u0628\u0631\u0627\u06cc \u06a9\u0627\u0647\u0634 \u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0648 \u062d\u0641\u0638 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645 \u06a9\u0647 HA \u0686\u06cc\u0633\u062a\u060c \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627 \u0686\u06af\u0648\u0646\u0647 \u0645\u062d\u0642\u0642 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u0686\u0647 \u0641\u0627\u06a9\u062a\u0648\u0631\u0647\u0627\u06cc\u06cc \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0622\u0646 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ha-\u0686\u06cc\u0633\u062a\">HA \u0686\u06cc\u0633\u062a\u061f<\/h2>\n\n\n\n<p>High Availability (\u0628\u0647 \u0627\u062e\u062a\u0635\u0627\u0631 HA) \u06cc\u0627 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627\u060c \u0628\u0647 \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645\u060c \u0633\u0631\u0648\u06cc\u0633 \u06cc\u0627 \u0628\u0631\u0646\u0627\u0645\u0647 \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0628\u0631\u0627\u06cc \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0645\u0627\u0646\u062f\u0646 \u0648 \u0627\u062f\u0627\u0645\u0647 \u0627\u0631\u0627\u0626\u0647 \u062e\u062f\u0645\u0627\u062a \u0628\u0627 \u062d\u062f\u0627\u0642\u0644 \u0648\u0642\u0641\u0647 \u06af\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0647\u062f\u0641 HA \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0635\u0648\u0631\u062a \u0628\u0631\u0648\u0632 \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0631\u06cc\u0632\u06cc\u200c\u0634\u062f\u0647 \u06cc\u0627 \u063a\u06cc\u0631\u0645\u0646\u062a\u0638\u0631\u0647\u060c \u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc (Downtime) \u0628\u0647 \u062d\u062f\u0627\u0642\u0644 \u0628\u0631\u0633\u062f \u0648 \u0633\u0631\u0648\u06cc\u0633 \u0628\u0627 \u06a9\u0645\u062a\u0631\u06cc\u0646 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0645\u062f\u0627\u062e\u0644\u0647 \u0627\u0646\u0633\u0627\u0646\u06cc \u0628\u0647 \u0641\u0639\u0627\u0644\u06cc\u062a \u062e\u0648\u062f \u0627\u062f\u0627\u0645\u0647 \u062f\u0647\u062f.<\/p>\n\n\n\n<p>\u0645\u0639\u0645\u0627\u0631\u06cc\u200c\u0647\u0627\u06cc High Availability \u0645\u0639\u0645\u0648\u0644\u0627 \u0628\u0631 \u062f\u0648 \u0627\u0635\u0644 \u06a9\u0644\u06cc\u062f\u06cc \u0632\u06cc\u0631 \u0627\u0633\u062a\u0648\u0627\u0631 \u0647\u0633\u062a\u0646\u062f:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u06a9\u0627\u0647\u0634 \u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc (Redundancy)<\/li>\n\n\n\n<li>\u062a\u062f\u0627\u0648\u0645 \u0633\u0631\u0648\u06cc\u0633 \u062f\u0631 \u0635\u0648\u0631\u062a \u062e\u0631\u0627\u0628\u06cc \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u06a9\u0627\u0646\u06cc\u0632\u0645\u200c\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f Failover<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u062a\u0641\u0627\u0648\u062a-high-availability-\u0628\u0627-uptime\">\u062a\u0641\u0627\u0648\u062a High Availability \u0628\u0627 Uptime<\/h3>\n\n\n\n<p>\u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627 \u0631\u0627 \u0646\u0628\u0627\u06cc\u062f \u0628\u0627 \u062f\u0631\u0635\u062f Uptime \u06cc\u06a9\u06cc \u062f\u0627\u0646\u0633\u062a. \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u06cc\u06a9 \u0633\u0631\u0648\u06cc\u0633 \u0628\u0631 \u0627\u0633\u0627\u0633 \u062a\u0648\u0627\u0641\u0642\u200c\u0646\u0627\u0645\u0647 \u0633\u0637\u062d \u062e\u062f\u0645\u0627\u062a (SLA) \u062f\u0631\u0635\u062f \u0645\u0634\u062e\u0635\u06cc \u0627\u0632 Uptime \u0631\u0627 \u062a\u0636\u0645\u06cc\u0646 \u06a9\u0646\u062f\u060c \u0627\u0645\u0627 HA \u0628\u0647 \u0646\u062d\u0648\u0647 \u0637\u0631\u0627\u062d\u06cc \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0628\u0631\u0627\u06cc \u062a\u062d\u0645\u0644 \u062e\u0631\u0627\u0628\u06cc \u0647\u0645 \u062a\u0648\u062c\u0647 \u062f\u0627\u0631\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u060c \u062c\u0627\u0628\u0647\u200c\u062c\u0627\u06cc\u06cc \u062e\u0648\u062f\u06a9\u0627\u0631 \u0633\u0631\u0648\u06cc\u0633 \u062f\u0631 \u0632\u0645\u0627\u0646 \u062e\u0631\u0627\u0628\u06cc \u0648 \u062a\u0648\u0632\u06cc\u0639 \u0645\u0646\u0627\u0628\u0639 \u062f\u0631 \u0628\u062e\u0634\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u060c \u0627\u062d\u062a\u0645\u0627\u0644 \u062a\u0648\u0642\u0641 \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f.<\/p>\n\n\n\n<p>\u062f\u0631 \u0645\u062d\u06cc\u0637\u200c\u0647\u0627\u06cc \u0627\u0628\u0631\u06cc\u060c HA \u0628\u0647 \u0633\u0627\u0632\u0645\u0627\u0646\u200c\u0647\u0627 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627 \u0648 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u062e\u0648\u062f \u0631\u0627 \u062d\u062a\u06cc \u062f\u0631 \u0635\u0648\u0631\u062a \u0627\u0632 \u062f\u0633\u062a\u0631\u0633 \u062e\u0627\u0631\u062c \u0634\u062f\u0646 \u0628\u062e\u0634\u06cc \u0627\u0632 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u060c \u0628\u0627 \u06a9\u0645\u062a\u0631\u06cc\u0646 \u0627\u062e\u062a\u0644\u0627\u0644 \u062f\u0631 \u0627\u062e\u062a\u06cc\u0627\u0631 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0642\u0631\u0627\u0631 \u062f\u0647\u0646\u062f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc-\u0627\u0646\u062f\u0627\u0632\u0647-\u06af\u06cc\u0631\u06cc-high-availability-\u0641\u0627\u06a9\u062a\u0648\u0631\u0647\u0627\u06cc-ha\">\u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0627\u0646\u062f\u0627\u0632\u0647\u200c\u06af\u06cc\u0631\u06cc High Availability (\u0641\u0627\u06a9\u062a\u0648\u0631\u0647\u0627\u06cc HA)<\/h2>\n\n\n\n<p>\u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06cc\u06a9 \u0645\u0639\u0645\u0627\u0631\u06cc HA\u060c \u0627\u0632 \u0634\u0627\u062e\u0635\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u0628\u0631\u0627\u06cc \u0627\u0646\u062f\u0627\u0632\u0647\u200c\u06af\u06cc\u0631\u06cc \u0645\u06cc\u0632\u0627\u0646 \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0648\u062f\u0646 \u0633\u0631\u0648\u06cc\u0633\u060c \u0642\u0627\u0628\u0644\u06cc\u062a \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0648 \u0633\u0631\u0639\u062a \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u06cc\u0646 \u0634\u0627\u062e\u0635\u200c\u0647\u0627 \u0628\u0647 \u0633\u0627\u0632\u0645\u0627\u0646\u200c\u0647\u0627 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u0639\u0645\u0644\u06a9\u0631\u062f \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0648 \u0645\u06cc\u0632\u0627\u0646 \u0622\u0645\u0627\u062f\u06af\u06cc \u0622\u0646 \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627 \u0631\u0627 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06a9\u0646\u0646\u062f. \u062f\u0631 \u0627\u062f\u0627\u0645\u0647\u060c \u0645\u0647\u0645\u200c\u062a\u0631\u06cc\u0646 \u0641\u0627\u06a9\u062a\u0648\u0631\u0647\u0627\u06cc HA \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-five-nines-99-999-\u06cc\u0627-\u0633\u0637\u0648\u062d-\u062f\u0633\u062a\u0631\u0633-\u067e\u0630\u06cc\u0631\u06cc\">Five Nines (99.999%) \u06cc\u0627 \u0633\u0637\u0648\u062d \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc<\/h3>\n\n\n\n<p>\u06cc\u06a9\u06cc \u0627\u0632 \u0631\u0627\u06cc\u062c\u200c\u062a\u0631\u06cc\u0646 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0627\u0646\u062f\u0627\u0632\u0647\u200c\u06af\u06cc\u0631\u06cc \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627\u060c \u062f\u0631\u0635\u062f \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0648\u062f\u0646 \u0633\u0631\u0648\u06cc\u0633 \u062f\u0631 \u06cc\u06a9 \u0628\u0627\u0632\u0647 \u0632\u0645\u0627\u0646\u06cc \u0645\u0634\u062e\u0635 \u0627\u0633\u062a. \u062f\u0631 \u0627\u06cc\u0646 \u0645\u062f\u0644\u060c \u0633\u0637\u0648\u062d\u06cc \u0645\u0627\u0646\u0646\u062f 99.9%\u060c 99.99% \u0648 99.999% \u0628\u0631\u0627\u06cc \u0628\u06cc\u0627\u0646 \u0645\u06cc\u0632\u0627\u0646 uptime \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u06a9\u0647 \u0628\u0647 \u062a\u0631\u062a\u06cc\u0628 \u0628\u0627 \u06a9\u0627\u0647\u0634 \u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0647\u0645\u0631\u0627\u0647 \u0647\u0633\u062a\u0646\u062f. \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f 99.999% \u06a9\u0647 \u0628\u0627 \u0639\u0646\u0648\u0627\u0646 \u00ab\u067e\u0646\u062c \u06f9\u00bb \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u0647\u062f\u0627\u0641 \u0645\u062a\u062f\u0627\u0648\u0644 \u0628\u0631\u0627\u06cc \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u0627\u0633\u062a \u0648 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u0633\u06cc\u0633\u062a\u0645 \u062f\u0631 \u0637\u0648\u0644 \u0633\u0627\u0644 \u062a\u0646\u0647\u0627 \u0686\u0646\u062f \u062f\u0642\u06cc\u0642\u0647 \u0627\u0632 \u062f\u0633\u062a\u0631\u0633 \u062e\u0627\u0631\u062c \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u0645\u06cc\u0627\u0646\u06af\u06cc\u0646-\u0632\u0645\u0627\u0646-\u0628\u06cc\u0646-\u062e\u0631\u0627\u0628\u06cc-\u0647\u0627-mtbf\">\u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0632\u0645\u0627\u0646 \u0628\u06cc\u0646 \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627 (MTBF)<\/h3>\n\n\n\n<p>MTBF \u06cc\u0627 Mean Time Between Failures\u060c \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0645\u062f\u062a \u0632\u0645\u0627\u0646\u06cc \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u06cc\u0627 \u0628\u062e\u0634\u06cc \u0627\u0632 \u0622\u0646\u060c \u0642\u0628\u0644 \u0627\u0632 \u0628\u0631\u0648\u0632 \u062e\u0631\u0627\u0628\u06cc \u0628\u0647 \u0641\u0639\u0627\u0644\u06cc\u062a \u062e\u0648\u062f \u0627\u062f\u0627\u0645\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f. \u0627\u06cc\u0646 \u0645\u0639\u06cc\u0627\u0631 \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0642\u0627\u0628\u0644\u06cc\u062a \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0647\u0631\u0686\u0647 \u0645\u0642\u062f\u0627\u0631 MTBF \u0628\u06cc\u0634\u062a\u0631 \u0628\u0627\u0634\u062f\u060c \u0641\u0627\u0635\u0644\u0647 \u0628\u06cc\u0646 \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u067e\u06cc\u062f\u0627 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0628\u0627\u0644\u0627\u062a\u0631 \u0645\u06cc\u200c\u0631\u0648\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u0645\u06cc\u0627\u0646\u06af\u06cc\u0646-\u0632\u0645\u0627\u0646-\u062a\u0639\u0645\u06cc\u0631-mttr\">\u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0632\u0645\u0627\u0646 \u062a\u0639\u0645\u06cc\u0631 (MTTR)<\/h3>\n\n\n\n<p>MTTR \u06cc\u0627 Mean Time to Repair\u060c \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0645\u062f\u062a \u0632\u0645\u0627\u0646 \u0645\u0648\u0631\u062f\u0646\u06cc\u0627\u0632 \u0628\u0631\u0627\u06cc \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc\u060c \u0639\u06cc\u0628\u200c\u06cc\u0627\u0628\u06cc \u0648 \u0628\u0627\u0632\u06af\u0631\u062f\u0627\u0646\u062f\u0646 \u0633\u06cc\u0633\u062a\u0645 \u0628\u0647 \u062d\u0627\u0644\u062a \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u067e\u0633 \u0627\u0632 \u062e\u0631\u0627\u0628\u06cc \u0631\u0627 \u0627\u0646\u062f\u0627\u0632\u0647\u200c\u06af\u06cc\u0631\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f. \u06a9\u0627\u0647\u0634 MTTR \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u0633\u0627\u0632\u0645\u0627\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u0632\u0645\u0627\u0646 \u06a9\u0648\u062a\u0627\u0647\u200c\u062a\u0631\u06cc \u0628\u0647 \u0631\u062e\u062f\u0627\u062f\u0647\u0627 \u067e\u0627\u0633\u062e \u062f\u0647\u062f \u0648 \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u062f\u0648\u0628\u0627\u0631\u0647 \u062f\u0631 \u0627\u062e\u062a\u06cc\u0627\u0631 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0642\u0631\u0627\u0631 \u062f\u0647\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u0647\u062f\u0641-\u0632\u0645\u0627\u0646-\u0628\u0627\u0632\u06cc\u0627\u0628\u06cc-rto\">\u0647\u062f\u0641 \u0632\u0645\u0627\u0646 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc (RTO)<\/h3>\n\n\n\n<p>RTO \u06cc\u0627 Recovery Time Objective\u060c \u062d\u062f\u0627\u06a9\u062b\u0631 \u0632\u0645\u0627\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u0648 \u0628\u0627\u0632\u06af\u0634\u062a \u0622\u0646 \u0628\u0647 \u0634\u0631\u0627\u06cc\u0637 \u0639\u0627\u062f\u06cc \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u06cc\u0646 \u0645\u0639\u06cc\u0627\u0631 \u0645\u0634\u062e\u0635 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u067e\u0633 \u0627\u0632 \u0648\u0642\u0648\u0639 \u06cc\u06a9 \u0627\u062e\u062a\u0644\u0627\u0644\u060c \u0686\u0647 \u0645\u062f\u062a \u0632\u0645\u0627\u0646 \u0628\u0631\u0627\u06cc \u0627\u0632\u0633\u0631\u06af\u06cc\u0631\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a \u0642\u0627\u0628\u0644 \u0642\u0628\u0648\u0644 \u0627\u0633\u062a. \u0647\u0631\u0686\u0647 \u0645\u0642\u062f\u0627\u0631 RTO \u06a9\u0645\u062a\u0631 \u0628\u0627\u0634\u062f\u060c \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0628\u0627\u06cc\u062f \u0628\u0627 \u0633\u0631\u0639\u062a \u0628\u06cc\u0634\u062a\u0631\u06cc \u0641\u0631\u0627\u06cc\u0646\u062f \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u0647\u062f\u0641-\u0646\u0642\u0637\u0647-\u0628\u0627\u0632\u06cc\u0627\u0628\u06cc-rpo\">\u0647\u062f\u0641 \u0646\u0642\u0637\u0647 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc (RPO)<\/h3>\n\n\n\n<p>RPO \u06cc\u0627 Recovery Point Objective\u060c \u062d\u062f\u0627\u06a9\u062b\u0631 \u0645\u06cc\u0632\u0627\u0646 \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0646 \u062f\u0627\u062f\u0647\u200c\u0627\u06cc \u0631\u0627 \u0645\u0634\u062e\u0635 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0633\u0627\u0632\u0645\u0627\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u0632\u0645\u0627\u0646 \u062e\u0631\u0627\u0628\u06cc \u062a\u062d\u0645\u0644 \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0645\u0639\u06cc\u0627\u0631 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u0633\u06cc\u0633\u062a\u0645 \u0628\u0627\u06cc\u062f \u062a\u0627 \u0686\u0647 \u0646\u0642\u0637\u0647\u200c\u0627\u06cc \u0627\u0632 \u06af\u0630\u0634\u062a\u0647 \u0642\u0627\u0628\u0644 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0628\u0627\u0634\u062f. \u0628\u0631\u0627\u06cc \u0645\u062b\u0627\u0644\u060c \u0627\u06af\u0631 \u0628\u0647 \u0635\u0648\u0631\u062a \u0631\u0648\u0632\u0627\u0646\u0647 \u0627\u0632 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0628\u06a9\u0627\u067e \u06af\u0631\u0641\u062a\u0647 \u0634\u0648\u062f\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062a\u0627 \u06cc\u06a9 \u0631\u0648\u0632 \u0627\u0632 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062b\u0628\u062a\u200c\u0634\u062f\u0647 \u0627\u0632 \u0622\u062e\u0631\u06cc\u0646 \u0646\u0633\u062e\u0647 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646 \u062a\u0627 \u0632\u0645\u0627\u0646 \u062e\u0631\u0627\u0628\u06cc \u0627\u0632 \u062f\u0633\u062a \u0628\u0631\u0648\u062f.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u0627\u062c\u0632\u0627\u06cc-\u06a9\u0644\u06cc\u062f\u06cc-\u0648-\u0645\u0641\u0627\u0647\u06cc\u0645-\u0628\u0646\u06cc\u0627\u062f\u06cc\u0646-\u062f\u0631-\u0645\u0639\u0645\u0627\u0631\u06cc-high-availability\">\u0627\u062c\u0632\u0627\u06cc \u06a9\u0644\u06cc\u062f\u06cc \u0648 \u0645\u0641\u0627\u0647\u06cc\u0645 \u0628\u0646\u06cc\u0627\u062f\u06cc\u0646 \u062f\u0631 \u0645\u0639\u0645\u0627\u0631\u06cc High Availability<\/h2>\n\n\n\n<p>\u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc High Availability \u0628\u0647 \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 \u0641\u0646\u0627\u0648\u0631\u06cc\u200c\u0647\u0627 \u0648 \u0645\u0639\u0645\u0627\u0631\u06cc\u200c\u0647\u0627 \u0645\u062a\u06a9\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0627 \u0647\u0645\u06a9\u0627\u0631\u06cc \u06cc\u06a9\u062f\u06cc\u06af\u0631\u060c \u0627\u062d\u062a\u0645\u0627\u0644 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f. \u0627\u06cc\u0646 \u0627\u062c\u0632\u0627 \u0628\u0627 \u062d\u0630\u0641 \u0646\u0642\u0627\u0637 \u0634\u06a9\u0633\u062a \u062a\u06a9\u06cc (SPOF \u0645\u062e\u0641\u0641 Single Point of Failure)\u060c \u062a\u0634\u062e\u06cc\u0635 \u062e\u0631\u0627\u0628\u06cc \u0648 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0633\u0631\u06cc\u0639 \u0633\u0631\u0648\u06cc\u0633\u060c \u0628\u0647 \u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u062f\u0631 \u0627\u062f\u0627\u0645\u0647\u060c \u0645\u0647\u0645\u200c\u062a\u0631\u06cc\u0646 \u0645\u0641\u0627\u0647\u06cc\u0645 \u0645\u0639\u0645\u0627\u0631\u06cc HA \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n\n\n\n<p><strong>\u0627\u0641\u0632\u0648\u0646\u06af\u06cc (Redundancy):<\/strong> \u0627\u0641\u0632\u0648\u0646\u06af\u06cc \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc \u067e\u0634\u062a\u06cc\u0628\u0627\u0646 \u062f\u0631 \u0644\u0627\u06cc\u0647\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0627\u0633\u062a \u062a\u0627 \u062f\u0631 \u0635\u0648\u0631\u062a \u062e\u0631\u0627\u0628\u06cc \u06cc\u06a9 \u0628\u062e\u0634\u060c \u0628\u062e\u0634 \u062f\u06cc\u06af\u0631\u06cc \u0628\u062a\u0648\u0627\u0646\u062f \u0647\u0645\u0627\u0646 \u0648\u0638\u06cc\u0641\u0647 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u062f. \u0627\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u0633\u0637\u062d \u0633\u062e\u062a\u200c\u0627\u0641\u0632\u0627\u0631\u060c \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631 \u0648 \u062f\u0627\u062f\u0647 \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u0634\u0648\u062f \u0648 \u0627\u0632 \u0627\u06cc\u062c\u0627\u062f \u0646\u0642\u0627\u0637 \u0634\u06a9\u0633\u062a \u062a\u06a9\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u06a9\u0646\u062f.<\/p>\n\n\n\n<p><strong>Failover \u0648 Failback \u062e\u0648\u062f\u06a9\u0627\u0631: <\/strong>Failover \u0641\u0631\u0627\u06cc\u0646\u062f\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0628\u0631\u0648\u0632 \u062e\u0631\u0627\u0628\u06cc\u060c \u0628\u0627\u0631 \u06a9\u0627\u0631\u06cc \u0631\u0627 \u0628\u0647\u200c\u0635\u0648\u0631\u062a \u062e\u0648\u062f\u06a9\u0627\u0631 \u0627\u0632 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0635\u0644\u06cc \u0628\u0647 \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646 \u0645\u0646\u062a\u0642\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f \u062a\u0627 \u0633\u0631\u0648\u06cc\u0633 \u0628\u062f\u0648\u0646 \u0648\u0642\u0641\u0647 \u0627\u062f\u0627\u0645\u0647 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u062f. \u067e\u0633 \u0627\u0632 \u0631\u0641\u0639 \u0645\u0634\u06a9\u0644\u060c \u0641\u0631\u0627\u06cc\u0646\u062f Failback \u0628\u0627\u0631 \u06a9\u0627\u0631\u06cc \u0631\u0627 \u062f\u0648\u0628\u0627\u0631\u0647 \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0635\u0644\u06cc \u0628\u0627\u0632\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f. \u062e\u0648\u062f\u06a9\u0627\u0631 \u0628\u0648\u062f\u0646 \u0627\u06cc\u0646 \u0641\u0631\u0627\u06cc\u0646\u062f\u0647\u0627 \u0627\u0647\u0645\u06cc\u062a \u0632\u06cc\u0627\u062f\u06cc \u062f\u0627\u0631\u062f\u060c \u0632\u06cc\u0631\u0627 \u0632\u0645\u0627\u0646 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f \u0648 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0645\u062f\u0627\u062e\u0644\u0647 \u0627\u0646\u0633\u0627\u0646\u06cc \u0631\u0627 \u0628\u0647 \u062d\u062f\u0627\u0642\u0644 \u0645\u06cc\u200c\u0631\u0633\u0627\u0646\u062f.<\/p>\n\n\n\n<p><strong>\u062a\u0648\u0632\u06cc\u0639 \u0628\u0627\u0631 (Load Balancing):<\/strong> \u0627\u06cc\u0646 \u0628\u062e\u0634 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0648 \u062f\u0631\u062e\u0648\u0627\u0633\u062a\u200c\u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u0631\u0627 \u0645\u06cc\u0627\u0646 \u0686\u0646\u062f \u0633\u0631\u0648\u0631 \u06cc\u0627 \u0646\u0648\u062f \u062a\u0648\u0632\u06cc\u0639 \u0645\u06cc\u200c\u06a9\u0646\u062f \u062a\u0627 \u0627\u0632 \u0627\u06cc\u062c\u0627\u062f \u0628\u0627\u0631 \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f \u0631\u0648\u06cc \u06cc\u06a9 \u0645\u0624\u0644\u0641\u0647 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0634\u0648\u062f. \u062f\u0631 \u0645\u0639\u0645\u0627\u0631\u06cc\u200c\u0647\u0627\u06cc \u0627\u0628\u0631\u06cc\u060c \u062a\u0648\u0632\u06cc\u0639 \u0628\u0627\u0631 \u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0628\u0647\u0628\u0648\u062f \u0639\u0645\u0644\u06a9\u0631\u062f\u060c \u0627\u062d\u062a\u0645\u0627\u0644 \u0627\u06cc\u062c\u0627\u062f \u0646\u0642\u0637\u0647 \u0634\u06a9\u0633\u062a \u062a\u06a9\u06cc \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f \u0648 \u0628\u0647 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0628\u06cc\u0634\u062a\u0631 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n\n\n\n<p><strong>\u06a9\u0644\u0627\u0633\u062a\u0631\u0647\u0627\u06cc HA:<\/strong> \u06a9\u0644\u0627\u0633\u062a\u0631\u0647\u0627\u06cc HA \u06cc\u0627 Failover Clusters\u060c \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 \u0633\u0631\u0648\u0631\u0647\u0627 \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u0628\u0647\u200c\u0635\u0648\u0631\u062a \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u0648\u0627\u062d\u062f \u0639\u0645\u0644 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u0648 \u062f\u0631 \u0635\u0648\u0631\u062a \u062e\u0631\u0627\u0628\u06cc \u06cc\u06a9\u06cc \u0627\u0632 \u0646\u0648\u062f\u0647\u0627\u060c \u0646\u0648\u062f \u062f\u06cc\u06af\u0631\u06cc \u0645\u0633\u0626\u0648\u0644\u06cc\u062a \u0627\u0631\u0627\u0626\u0647 \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u0628\u0631 \u0639\u0647\u062f\u0647 \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f. \u0627\u06cc\u0646 \u06a9\u0644\u0627\u0633\u062a\u0631\u0647\u0627 \u0628\u0647\u200c\u0635\u0648\u0631\u062a \u0645\u062f\u0627\u0648\u0645 \u0648\u0636\u0639\u06cc\u062a \u0646\u0648\u062f\u0647\u0627 \u0648 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0631\u0627 \u067e\u0627\u06cc\u0634 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u0648 \u0628\u0631\u0627\u06cc \u062d\u0641\u0638 \u0622\u0645\u0627\u062f\u06af\u06cc \u062f\u0631 \u0634\u0631\u0627\u06cc\u0637 \u062e\u0631\u0627\u0628\u06cc\u060c \u0628\u0647\u200c\u0637\u0648\u0631 \u0645\u0646\u0638\u0645 \u0645\u0648\u0631\u062f \u0622\u0632\u0645\u0648\u0646 \u0642\u0631\u0627\u0631 \u0645\u06cc\u200c\u06af\u06cc\u0631\u0646\u062f.<\/p>\n\n\n\n<p><strong>\u062a\u06a9\u062b\u06cc\u0631 \u062f\u0627\u062f\u0647 (Replication):<\/strong> \u062a\u06a9\u062b\u06cc\u0631 \u062f\u0627\u062f\u0647 \u0628\u0647 \u0641\u0631\u0627\u06cc\u0646\u062f \u06a9\u067e\u06cc \u0648 \u0647\u0645\u06af\u0627\u0645\u200c\u0633\u0627\u0632\u06cc \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0645\u06cc\u0627\u0646 \u0686\u0646\u062f \u0646\u0648\u062f \u06cc\u0627 \u062d\u062a\u06cc \u0686\u0646\u062f \u06a9\u0644\u0627\u0633\u062a\u0631 \u06af\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0628\u0627\u0639\u062b \u0645\u06cc\u200c\u0634\u0648\u062f \u062f\u0631 \u0635\u0648\u0631\u062a \u0627\u0632 \u062f\u0633\u062a\u0631\u0633 \u062e\u0627\u0631\u062c \u0634\u062f\u0646 \u06cc\u06a9 \u0633\u0631\u0648\u0631 \u06cc\u0627 \u062f\u06cc\u062a\u0627\u0633\u0646\u062a\u0631\u060c \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0645\u0648\u0631\u062f\u0646\u06cc\u0627\u0632 \u0647\u0645\u0686\u0646\u0627\u0646 \u062f\u0631 \u0645\u062d\u0644 \u062f\u06cc\u06af\u0631\u06cc \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0627\u0634\u0646\u062f. \u062a\u06a9\u062b\u06cc\u0631 \u062f\u0627\u062f\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0647\u200c\u0635\u0648\u0631\u062a \u0647\u0645\u0632\u0645\u0627\u0646 (Synchronous) \u06cc\u0627 \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 (Asynchronous) \u0627\u0646\u062c\u0627\u0645 \u0634\u0648\u062f \u06a9\u0647 \u0647\u0631\u06cc\u06a9 \u0627\u0632 \u0646\u0638\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u0645\u06cc\u0632\u0627\u0646 \u0631\u06cc\u0633\u06a9 \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0646 \u062f\u0627\u062f\u0647 \u0648\u06cc\u0698\u06af\u06cc\u200c\u0647\u0627\u06cc \u0645\u062a\u0641\u0627\u0648\u062a\u06cc \u062f\u0627\u0631\u0646\u062f.<\/p>\n\n\n\n<p><strong>\u062a\u0648\u0632\u06cc\u0639 \u062c\u063a\u0631\u0627\u0641\u06cc\u0627\u06cc\u06cc (Geographic Distribution): <\/strong>\u062f\u0631 \u0627\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f\u060c \u0645\u0646\u0627\u0628\u0639 \u0648 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u062f\u0631 \u0686\u0646\u062f \u0645\u0648\u0642\u0639\u06cc\u062a \u062c\u063a\u0631\u0627\u0641\u06cc\u0627\u06cc\u06cc \u0645\u062e\u062a\u0644\u0641 \u0645\u0633\u062a\u0642\u0631 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u062a\u0627 \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627\u06cc \u0645\u062d\u0644\u06cc \u0645\u0627\u0646\u0646\u062f \u0642\u0637\u0639\u06cc \u0628\u0631\u0642\u060c \u0627\u062e\u062a\u0644\u0627\u0644 \u06cc\u06a9 \u062f\u06cc\u062a\u0627\u0633\u0646\u062a\u0631 \u06cc\u0627 \u0628\u0644\u0627\u06cc\u0627\u06cc \u0637\u0628\u06cc\u0639\u06cc \u0628\u0627\u0639\u062b \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u06a9\u0627\u0645\u0644 \u0633\u0631\u0648\u06cc\u0633 \u0646\u0634\u0648\u062f. \u062a\u0648\u0632\u06cc\u0639 \u062c\u063a\u0631\u0627\u0641\u06cc\u0627\u06cc\u06cc \u06cc\u06a9\u06cc \u0627\u0632 \u0631\u0627\u0647\u06a9\u0627\u0631\u0647\u0627\u06cc \u0631\u0627\u06cc\u062c \u0628\u0631\u0627\u06cc \u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627 \u062f\u0631 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u200c\u0647\u0627\u06cc \u0627\u0628\u0631\u06cc \u0648 \u0627\u0628\u0631 \u062a\u0631\u06a9\u06cc\u0628\u06cc \u0627\u0633\u062a.<\/p>\n\n\n\n<p><strong>\u0628\u0631\u0631\u0633\u06cc \u0633\u0644\u0627\u0645\u062a (Health Checks) \u0648 \u062e\u0648\u062f\u062a\u0631\u0645\u06cc\u0645\u06cc (Self-healing): <\/strong>\u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc HA \u0628\u0647\u200c\u0637\u0648\u0631 \u0645\u062f\u0627\u0648\u0645 \u0648\u0636\u0639\u06cc\u062a \u0633\u0631\u0648\u0631\u0647\u0627\u060c \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0648 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0631\u0627 \u067e\u0627\u06cc\u0634 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u062a\u0627 \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627 \u062f\u0631 \u06a9\u0648\u062a\u0627\u0647\u200c\u062a\u0631\u06cc\u0646 \u0632\u0645\u0627\u0646 \u0645\u0645\u06a9\u0646 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0634\u0648\u0646\u062f. \u062f\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0645\u0639\u0645\u0627\u0631\u06cc\u200c\u0647\u0627\u06cc \u0645\u062f\u0631\u0646\u060c \u067e\u0633 \u0627\u0632 \u062a\u0634\u062e\u06cc\u0635 \u0645\u0634\u06a9\u0644\u060c \u0641\u0631\u0627\u06cc\u0646\u062f\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f \u0627\u062c\u0631\u0627\u06cc Failover \u06cc\u0627 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u062e\u0648\u062f\u06a9\u0627\u0631 \u0633\u0631\u0648\u06cc\u0633 \u0628\u062f\u0648\u0646 \u062f\u062e\u0627\u0644\u062a \u0627\u0646\u0633\u0627\u0646 \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0627\u06cc\u0646 \u0627\u0645\u0631 \u0628\u0647 \u06a9\u0627\u0647\u0634 \u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u0631\u0648\u0634-\u0647\u0627\u06cc-\u067e\u06cc\u0627\u062f\u0647-\u0633\u0627\u0632\u06cc-high-availability\">\u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc High Availability<\/h2>\n\n\n\n<p>\u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06cc\u0627\u0628\u06cc \u0628\u0647 High Availability\u060c \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0628\u0627\u06cc\u062f \u0628\u0647\u200c\u06af\u0648\u0646\u0647\u200c\u0627\u06cc \u0637\u0631\u0627\u062d\u06cc \u0634\u0648\u062f \u06a9\u0647 \u062f\u0631 \u0635\u0648\u0631\u062a \u0628\u0631\u0648\u0632 \u062e\u0631\u0627\u0628\u06cc\u060c \u0633\u0631\u0648\u06cc\u0633 \u0628\u0627 \u06a9\u0645\u062a\u0631\u06cc\u0646 \u0627\u062e\u062a\u0644\u0627\u0644 \u0628\u0647 \u06a9\u0627\u0631 \u062e\u0648\u062f \u0627\u062f\u0627\u0645\u0647 \u062f\u0647\u062f. \u0627\u06cc\u0646 \u0647\u062f\u0641 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0627 \u062d\u0630\u0641 \u0646\u0642\u0627\u0637 \u0634\u06a9\u0633\u062a \u062a\u06a9\u06cc\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc\u060c \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc Failover\u060c \u0645\u062d\u0627\u0641\u0638\u062a \u0627\u0632 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0648 \u067e\u0627\u06cc\u0634 \u0645\u062f\u0627\u0648\u0645 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0645\u062d\u0642\u0642 \u0645\u06cc\u200c\u0634\u0648\u062f. \u062f\u0631 \u0627\u062f\u0627\u0645\u0647\u060c \u0645\u0647\u0645\u200c\u062a\u0631\u06cc\u0646 \u0645\u0631\u0627\u062d\u0644 \u0648 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u062d\u0630\u0641-\u0646\u0642\u0627\u0637-\u0634\u06a9\u0633\u062a-\u062a\u06a9\u06cc-spof\">\u062d\u0630\u0641 \u0646\u0642\u0627\u0637 \u0634\u06a9\u0633\u062a \u062a\u06a9\u06cc (SPOF)<\/h3>\n\n\n\n<p>\u0627\u0648\u0644\u06cc\u0646 \u06af\u0627\u0645\u060c \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062e\u0631\u0627\u0628\u06cc \u0622\u0646\u200c\u0647\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u06a9\u0644 \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u0627\u0632 \u062f\u0633\u062a\u0631\u0633 \u062e\u0627\u0631\u062c \u06a9\u0646\u062f. \u0628\u0631\u0627\u06cc \u06a9\u0627\u0647\u0634 \u0627\u06cc\u0646 \u0631\u06cc\u0633\u06a9\u060c \u0627\u0632 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc \u062f\u0631 \u0628\u062e\u0634\u200c\u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u0645\u0627\u0646\u0646\u062f \u0633\u0631\u0648\u0631\u0647\u0627\u060c \u067e\u0627\u06cc\u06af\u0627\u0647\u200c\u0647\u0627\u06cc \u062f\u0627\u062f\u0647\u060c \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u0634\u0628\u06a9\u0647 \u0648 \u0645\u0646\u0627\u0628\u0639 \u062a\u063a\u0630\u06cc\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0647\u0645\u0686\u0646\u06cc\u0646 \u062a\u0648\u0632\u06cc\u0639 \u0628\u0627\u0631 \u0648 \u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0645\u0646\u0627\u0628\u0639 \u062f\u0631 \u0686\u0646\u062f \u0645\u0646\u0637\u0642\u0647 \u062c\u063a\u0631\u0627\u0641\u06cc\u0627\u06cc\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0648\u0627\u0628\u0633\u062a\u06af\u06cc \u0628\u0647 \u06cc\u06a9 \u0645\u0624\u0644\u0641\u0647 \u06cc\u0627 \u06cc\u06a9 \u062f\u06cc\u062a\u0627\u0633\u0646\u062a\u0631 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u062f\u0647\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u067e\u06cc\u0627\u062f\u0647-\u0633\u0627\u0632\u06cc-failover-\u0642\u0627\u0628\u0644-\u0627\u0639\u062a\u0645\u0627\u062f\">\u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc Failover \u0642\u0627\u0628\u0644 \u0627\u0639\u062a\u0645\u0627\u062f<\/h3>\n\n\n\n<p>\u067e\u0633 \u0627\u0632 \u062d\u0630\u0641 \u0646\u0642\u0627\u0637 \u0634\u06a9\u0633\u062a \u062a\u06a9\u06cc\u060c \u0628\u0627\u06cc\u062f \u0645\u06a9\u0627\u0646\u06cc\u0632\u0645 Failover \u0648\u062c\u0648\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f \u06a9\u0647 \u062f\u0631 \u0635\u0648\u0631\u062a \u062e\u0631\u0627\u0628\u06cc \u06cc\u06a9 \u0645\u0624\u0644\u0641\u0647\u060c \u0628\u0627\u0631 \u06a9\u0627\u0631\u06cc \u0631\u0627 \u0628\u0647\u200c\u0633\u0631\u0639\u062a \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646 \u0645\u0646\u062a\u0642\u0644 \u06a9\u0646\u062f. \u0647\u062f\u0641 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0627\u0646\u062a\u0642\u0627\u0644 \u0633\u0631\u0648\u06cc\u0633 \u0628\u0627 \u062d\u062f\u0627\u0642\u0644 downtime \u0648 \u0628\u062f\u0648\u0646 \u0627\u062e\u062a\u0644\u0627\u0644 \u062c\u062f\u06cc \u062f\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f \u06cc\u0627 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0627\u0646\u062c\u0627\u0645 \u0634\u0648\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u062a\u0634\u062e\u06cc\u0635-\u062e\u0648\u062f\u06a9\u0627\u0631-\u062e\u0631\u0627\u0628\u06cc-\u0647\u0627\">\u062a\u0634\u062e\u06cc\u0635 \u062e\u0648\u062f\u06a9\u0627\u0631 \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627<\/h3>\n\n\n\n<p>\u06cc\u06a9 \u0645\u0639\u0645\u0627\u0631\u06cc HA \u0628\u0627\u06cc\u062f \u0628\u062a\u0648\u0627\u0646\u062f \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627 \u0631\u0627 \u062f\u0631 \u06a9\u0648\u062a\u0627\u0647\u200c\u062a\u0631\u06cc\u0646 \u0632\u0645\u0627\u0646 \u0645\u0645\u06a9\u0646 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u06a9\u0646\u062f \u0648 \u062f\u0631 \u0635\u0648\u0631\u062a \u0646\u06cc\u0627\u0632\u060c \u0628\u0647\u200c\u0635\u0648\u0631\u062a \u062e\u0648\u062f\u06a9\u0627\u0631 \u0627\u0642\u062f\u0627\u0645\u0627\u062a\u06cc \u0645\u0627\u0646\u0646\u062f Failover \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u062f. \u0645\u0639\u0645\u0648\u0644\u0627 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0645\u0646\u0638\u0648\u0631 \u0627\u0632 \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u0645\u0627\u0646\u06cc\u062a\u0648\u0631\u06cc\u0646\u06af\u060c Health Check \u0648 \u0645\u06a9\u0627\u0646\u06cc\u0632\u0645\u200c\u0647\u0627\u06cc Heartbeat (\u0645\u06a9\u0627\u0646\u06cc\u0632\u0645\u06cc \u0628\u0631\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0645\u062f\u0627\u0648\u0645 \u0648\u0636\u0639\u06cc\u062a \u0648 \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0648\u062f\u0646 \u0646\u0648\u062f\u0647\u0627) \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u0627\u06cc\u062c\u0627\u062f-\u0631\u0627\u0647\u06a9\u0627\u0631-\u0645\u0646\u0627\u0633\u0628-\u0628\u0631\u0627\u06cc-backup-\u0648-\u0628\u0627\u0632\u06cc\u0627\u0628\u06cc-\u062f\u0627\u062f\u0647\">\u0627\u06cc\u062c\u0627\u062f \u0631\u0627\u0647\u06a9\u0627\u0631 \u0645\u0646\u0627\u0633\u0628 \u0628\u0631\u0627\u06cc Backup \u0648 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u062f\u0627\u062f\u0647<\/h3>\n\n\n\n<p>\u062d\u0641\u0638 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u062f\u0648\u0646 \u0645\u062d\u0627\u0641\u0638\u062a \u0627\u0632 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0627\u0645\u06a9\u0627\u0646\u200c\u067e\u0630\u06cc\u0631 \u0646\u06cc\u0633\u062a. \u062a\u0647\u06cc\u0647 \u0646\u0633\u062e\u0647 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Replication \u0648 \u0622\u0632\u0645\u0627\u06cc\u0634 \u062f\u0648\u0631\u0647\u200c\u0627\u06cc \u0641\u0631\u0627\u06cc\u0646\u062f \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc\u060c \u0628\u0647 \u0633\u0627\u0632\u0645\u0627\u0646 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f \u062f\u0631 \u0632\u0645\u0627\u0646 \u062e\u0631\u0627\u0628\u06cc\u060c \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0648 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0631\u0627 \u062f\u0631 \u06a9\u0648\u062a\u0627\u0647\u200c\u062a\u0631\u06cc\u0646 \u0632\u0645\u0627\u0646 \u0645\u0645\u06a9\u0646 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u06a9\u0646\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u0627\u0633\u062a\u0642\u0631\u0627\u0631-\u06a9\u0644\u0627\u0633\u062a\u0631\u0647\u0627\u06cc-ha-\u0648-load-balancing\">\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u06a9\u0644\u0627\u0633\u062a\u0631\u0647\u0627\u06cc HA \u0648 Load Balancing<\/h3>\n\n\n\n<p>\u06a9\u0644\u0627\u0633\u062a\u0631\u0647\u0627\u06cc High Availability \u0627\u0645\u06a9\u0627\u0646 \u0627\u062f\u0627\u0645\u0647 \u0641\u0639\u0627\u0644\u06cc\u062a \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u062f\u0631 \u0635\u0648\u0631\u062a \u062e\u0631\u0627\u0628\u06cc \u06cc\u06a9 \u0646\u0648\u062f \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u0648 Load Balancing \u0647\u0645 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0631\u0627 \u0645\u06cc\u0627\u0646 \u0646\u0648\u062f\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u062a\u0648\u0632\u06cc\u0639 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u062a\u0631\u06a9\u06cc\u0628 \u0627\u06cc\u0646 \u062f\u0648 \u0631\u0627\u0647\u06a9\u0627\u0631 \u0645\u0627\u0646\u0639 \u0627\u0632 \u0627\u06cc\u062c\u0627\u062f \u0646\u0642\u0637\u0647 \u0634\u06a9\u0633\u062a \u062a\u06a9\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u062d\u062a\u06cc \u0628\u0627\u0639\u062b \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0633\u06cc\u0633\u062a\u0645 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0628\u0627\u0631 \u062d\u0641\u0638 \u0634\u0648\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u0645\u0627\u0646\u06cc\u062a\u0648\u0631\u06cc\u0646\u06af-\u0645\u0633\u062a\u0645\u0631-\u0648-\u062a\u0633\u062a-\u062f\u0648\u0631\u0647-\u0627\u06cc\">\u0645\u0627\u0646\u06cc\u062a\u0648\u0631\u06cc\u0646\u06af \u0645\u0633\u062a\u0645\u0631 \u0648 \u062a\u0633\u062a \u062f\u0648\u0631\u0647\u200c\u0627\u06cc<\/h3>\n\n\n\n<p>\u067e\u0633 \u0627\u0632 \u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u060c \u0628\u0627\u06cc\u062f \u0648\u0636\u0639\u06cc\u062a \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u060c \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627\u060c \u0634\u0628\u06a9\u0647 \u0648 \u0646\u0648\u062f\u0647\u0627\u06cc \u06a9\u0644\u0627\u0633\u062a\u0631 \u0628\u0647\u200c\u0635\u0648\u0631\u062a \u0645\u062f\u0627\u0648\u0645 \u067e\u0627\u06cc\u0634 \u0634\u0648\u062f. \u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0627\u06cc\u0646\u060c \u0645\u06a9\u0627\u0646\u06cc\u0632\u0645\u200c\u0647\u0627\u06cc Failover \u0648 \u0641\u0631\u0627\u06cc\u0646\u062f\u0647\u0627\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0628\u0627\u06cc\u062f \u0628\u0647\u200c\u0635\u0648\u0631\u062a \u062f\u0648\u0631\u0647\u200c\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634 \u0634\u0648\u0646\u062f \u062a\u0627 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0648\u0642\u0648\u0639 \u062e\u0631\u0627\u0628\u06cc\u060c \u0639\u0645\u0644\u06a9\u0631\u062f \u0645\u0648\u0631\u062f \u0627\u0646\u062a\u0638\u0627\u0631 \u0631\u0627 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u0646\u062f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u0645\u0642\u0627\u06cc\u0633\u0647-high-availability-\u0628\u0627-disaster-recovery\">\u0645\u0642\u0627\u06cc\u0633\u0647 High Availability \u0628\u0627 Disaster Recovery<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"668\" src=\"https:\/\/hamravesh.com\/blog\/wp-content\/uploads\/2026\/06\/hamravesh-what-is-high-availability2-1024x668.webp\" alt=\"\u0645\u0642\u0627\u06cc\u0633\u0647 High Availability \u0628\u0627 Disaster Recovery\" class=\"wp-image-5339\" srcset=\"https:\/\/hamravesh.com\/blog\/wp-content\/uploads\/2026\/06\/hamravesh-what-is-high-availability2-1024x668.webp 1024w, https:\/\/hamravesh.com\/blog\/wp-content\/uploads\/2026\/06\/hamravesh-what-is-high-availability2-300x196.webp 300w, https:\/\/hamravesh.com\/blog\/wp-content\/uploads\/2026\/06\/hamravesh-what-is-high-availability2-768x501.webp 768w, https:\/\/hamravesh.com\/blog\/wp-content\/uploads\/2026\/06\/hamravesh-what-is-high-availability2-120x78.webp 120w, https:\/\/hamravesh.com\/blog\/wp-content\/uploads\/2026\/06\/hamravesh-what-is-high-availability2.webp 1201w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u062a\u0641\u0627\u0648\u062a HA \u0648 DR \u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0648\u0636\u0648\u0639\u0627\u062a \u0645\u0647\u0645 \u062f\u0631 \u0637\u0631\u0627\u062d\u06cc \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u200c\u0647\u0627\u06cc \u067e\u0627\u06cc\u062f\u0627\u0631 \u0627\u0633\u062a. High Availability \u0628\u0631 \u06a9\u0627\u0647\u0634 \u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0648 \u062d\u0641\u0638 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0633\u0631\u0648\u06cc\u0633 \u062f\u0631 \u0632\u0645\u0627\u0646 \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627\u06cc \u0645\u0639\u0645\u0648\u0644 \u062a\u0645\u0631\u06a9\u0632 \u062f\u0627\u0631\u062f\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 <a href=\"https:\/\/hamravesh.com\/blog\/what-is-disaster-recovery\/\" type=\"link\" id=\"https:\/\/hamravesh.com\/blog\/what-is-disaster-recovery\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0627\u0632 \u0641\u0627\u062c\u0639\u0647<\/a> \u06cc\u0627 DR \u0628\u0631\u0627\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0648 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u067e\u0633 \u0627\u0632 \u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627\u06cc \u06af\u0633\u062a\u0631\u062f\u0647 \u0648 \u0641\u0627\u062c\u0639\u0647\u200c\u0628\u0627\u0631 \u0628\u0647 \u06a9\u0627\u0631 \u0645\u06cc\u200c\u0631\u0648\u062f. \u0627\u06cc\u0646 \u062f\u0648 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0645\u06a9\u0645\u0644 \u06cc\u06a9\u062f\u06cc\u06af\u0631 \u0647\u0633\u062a\u0646\u062f \u0648 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0633\u0627\u0632\u0645\u0627\u0646\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u0627\u0641\u0632\u0627\u06cc\u0634 \u062a\u062f\u0627\u0648\u0645 \u06a9\u0633\u0628\u200c\u0648\u06a9\u0627\u0631 \u0627\u0632 \u0647\u0631 \u062f\u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u062f\u0631 \u062c\u062f\u0648\u0644 \u0632\u06cc\u0631 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645 \u06a9\u0647 \u0645\u0647\u0645\u200c\u062a\u0631\u06cc\u0646 \u062a\u0641\u0627\u0648\u062a\u200c\u0647\u0627\u06cc DR \u0648 HA \u0686\u06cc\u0633\u062a.\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u0648\u06cc\u0698\u06af\u06cc<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>High Availability (HA)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Disaster Recovery (DR)<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u062a\u0645\u0631\u06a9\u0632<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u062d\u0641\u0638 \u0639\u0645\u0644\u06a9\u0631\u062f \u067e\u06cc\u0648\u0633\u062a\u0647 \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u06cc\u0627 \u0628\u0631\u0646\u0627\u0645\u0647<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a \u062d\u06cc\u0627\u062a\u06cc \u06a9\u0633\u0628\u200c\u0648\u06a9\u0627\u0631 \u067e\u0633 \u0627\u0632 \u0641\u0627\u062c\u0639\u0647<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0647\u062f\u0641<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u06a9\u0627\u0647\u0634 downtime \u0648 \u062d\u0641\u0638 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0633\u0631\u0648\u06cc\u0633<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0633\u0631\u06cc\u0639 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0628\u0627 \u062d\u062f\u0627\u0642\u0644 \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0646 \u062f\u0627\u062f\u0647<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0631\u0627\u06cc\u062c<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0627\u0641\u0632\u0648\u0646\u06af\u06cc\u060c Load Balancing \u060cFailover \u060cReplication \u0648 Clustering<\/td><td class=\"has-text-align-center\" data-align=\"center\">Backup \u0648 Restore\u060c \u062a\u06a9\u062b\u06cc\u0631 \u0628\u06cc\u0646 \u0633\u0627\u06cc\u062a\u200c\u0647\u0627\u060c \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u0627\u0628\u0631 \u0648 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0631\u06cc\u0632\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0628\u062d\u0631\u0627\u0646<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u062f\u0627\u0645\u0646\u0647 \u067e\u0648\u0634\u0634<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u06cc\u06a9 \u0633\u0631\u0648\u06cc\u0633 \u06cc\u0627 \u0628\u0631\u0646\u0627\u0645\u0647 \u0645\u0634\u062e\u0635<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u06a9\u0644 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0648 \u0639\u0645\u0644\u06cc\u0627\u062a \u062d\u06cc\u0627\u062a\u06cc \u0633\u0627\u0632\u0645\u0627\u0646<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0628\u0627\u0632\u0647 \u0632\u0645\u0627\u0646\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0645\u0639\u0645\u0648\u0644\u0627 \u062f\u0631 \u062d\u062f \u0686\u0646\u062f \u062b\u0627\u0646\u06cc\u0647 \u06cc\u0627 \u0686\u0646\u062f \u062f\u0642\u06cc\u0642\u0647<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0645\u0639\u0645\u0648\u0644\u0627 \u062f\u0631 \u062d\u062f \u0633\u0627\u0639\u062a\u060c \u0631\u0648\u0632 \u06cc\u0627 \u062d\u062a\u06cc \u0647\u0641\u062a\u0647<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0646\u0648\u0639 \u0631\u0648\u06cc\u062f\u0627\u062f \u0627\u062b\u0631\u06af\u0630\u0627\u0631<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u062e\u0631\u0627\u0628\u06cc \u0633\u062e\u062a\u200c\u0627\u0641\u0632\u0627\u0631\u060c \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631\u060c \u0634\u0628\u06a9\u0647 \u06cc\u0627 \u0633\u0627\u06cc\u0631 \u0627\u062e\u062a\u0644\u0627\u0644\u0627\u062a \u0645\u062d\u0644\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0628\u0644\u0627\u06cc\u0627\u06cc \u0637\u0628\u06cc\u0639\u06cc\u060c \u062d\u0645\u0644\u0627\u062a \u0633\u0627\u06cc\u0628\u0631\u06cc \u06af\u0633\u062a\u0631\u062f\u0647\u060c \u062e\u0631\u0627\u0628\u06cc \u06a9\u0627\u0645\u0644 \u062f\u06cc\u062a\u0627\u0633\u0646\u062a\u0631 \u06cc\u0627 \u0627\u0632 \u06a9\u0627\u0631 \u0627\u0641\u062a\u0627\u062f\u0646 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u200c\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc \u0648 \u0628\u06a9\u0627\u067e<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0627\u0632 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc \u0648 \u0646\u0633\u062e\u0647\u200c\u0647\u0627\u06cc \u067e\u0634\u062a\u06cc\u0628\u0627\u0646 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0647\u0634 \u0627\u062e\u062a\u0644\u0627\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0627\u0632 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc \u0648 \u0646\u0633\u062e\u0647\u200c\u0647\u0627\u06cc \u067e\u0634\u062a\u06cc\u0628\u0627\u0646 \u0628\u0631\u0627\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a \u067e\u0633 \u0627\u0632 \u0641\u0627\u062c\u0639\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0647\u0632\u06cc\u0646\u0647 \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0645\u0639\u0645\u0648\u0644\u0627 \u062f\u0631 \u0633\u0637\u062d \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627 \u0648 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0645\u0639\u0645\u0648\u0644\u0627 \u0647\u0632\u06cc\u0646\u0647 \u0628\u06cc\u0634\u062a\u0631\u06cc \u062f\u0627\u0631\u062f \u0648 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0647 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u062f\u0648\u0645 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u062a\u0641\u0627\u0648\u062a-high-availability-\u0628\u0627-fault-tolerance\">\u062a\u0641\u0627\u0648\u062a High Availability \u0628\u0627 Fault Tolerance<\/h2>\n\n\n\n<p>High Availability \u0648 Fault Tolerance \u0647\u0631 \u062f\u0648 \u0628\u0627 \u0647\u062f\u0641 \u0627\u0641\u0632\u0627\u06cc\u0634 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0648 \u062a\u062f\u0627\u0648\u0645 \u0633\u0631\u0648\u06cc\u0633 \u0637\u0631\u0627\u062d\u06cc \u0645\u06cc\u200c\u0634\u0648\u0646\u062f\u060c \u0627\u0645\u0627 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0622\u0646\u200c\u0647\u0627 \u0645\u062a\u0641\u0627\u0648\u062a \u0627\u0633\u062a. High Availability \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc \u0648 Failover \u062a\u0644\u0627\u0634 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0631\u0627 \u0628\u0647 \u062d\u062f\u0627\u0642\u0644 \u0628\u0631\u0633\u0627\u0646\u062f\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 Fault Tolerance \u0628\u0647\u200c\u06af\u0648\u0646\u0647\u200c\u0627\u06cc \u0637\u0631\u0627\u062d\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0633\u0631\u0648\u06cc\u0633 \u062d\u062a\u06cc \u062f\u0631 \u0635\u0648\u0631\u062a \u062e\u0631\u0627\u0628\u06cc \u0628\u0631\u062e\u06cc \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627 \u0646\u06cc\u0632 \u0628\u062f\u0648\u0646 \u0648\u0642\u0641\u0647 \u0628\u0647 \u06a9\u0627\u0631 \u062e\u0648\u062f \u0627\u062f\u0627\u0645\u0647 \u062f\u0647\u062f. \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644\u060c Fault Tolerance \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0647 \u0645\u0646\u0627\u0628\u0639 \u0628\u06cc\u0634\u062a\u0631 \u0648 \u0645\u0639\u0645\u0627\u0631\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647\u200c\u062a\u0631\u06cc \u0646\u0633\u0628\u062a \u0628\u0647 HA \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f. \u062f\u0631 \u062c\u062f\u0648\u0644 \u0645\u0642\u0627\u06cc\u0633\u0647 \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645 \u06a9\u0647 \u062a\u0641\u0627\u0648\u062a\u200c\u0647\u0627\u06cc Fault Tolerance \u0648 HA \u0686\u06cc\u0633\u062a.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u0645\u0639\u06cc\u0627\u0631<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>High Availability (HA)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Fault Tolerance (FT)<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0647\u062f\u0641<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0628\u0647 \u062d\u062f\u0627\u0642\u0644 \u0631\u0633\u0627\u0646\u062f\u0646 downtime<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u062f\u0633\u062a\u06cc\u0627\u0628\u06cc \u0628\u0647 \u0635\u0641\u0631 downtime<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0686\u0646\u062f \u062b\u0627\u0646\u06cc\u0647 \u06cc\u0627 \u0686\u0646\u062f \u062f\u0642\u06cc\u0642\u0647<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0628\u062f\u0648\u0646 \u0648\u0642\u0641\u0647 \u062f\u0631 \u0627\u0631\u0627\u0626\u0647 \u0633\u0631\u0648\u06cc\u0633<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0633\u0637\u062d \u0627\u0641\u0632\u0648\u0646\u06af\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc \u067e\u0634\u062a\u06cc\u0628\u0627\u0646 \u062f\u0631 \u0628\u062e\u0634\u200c\u0647\u0627\u06cc \u06a9\u0644\u06cc\u062f\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0627\u0641\u0632\u0648\u0646\u06af\u06cc \u06a9\u0627\u0645\u0644 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0648 \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0647\u0632\u06cc\u0646\u0647 \u0648 \u067e\u06cc\u0686\u06cc\u062f\u06af\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0645\u062a\u0648\u0633\u0637 \u0648 \u0645\u0646\u0627\u0633\u0628 \u0628\u0631\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0633\u0627\u0645\u0627\u0646\u0647\u200c\u0647\u0627\u06cc \u0633\u0627\u0632\u0645\u0627\u0646\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0628\u0627\u0644\u0627 \u0648 \u0646\u06cc\u0627\u0632\u0645\u0646\u062f \u0633\u0631\u0645\u0627\u06cc\u0647\u200c\u06af\u0630\u0627\u0631\u06cc \u0628\u06cc\u0634\u062a\u0631<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0646\u06cc\u0627\u0632 \u0628\u0647 \u06a9\u067e\u06cc \u06a9\u0627\u0645\u0644 \u0633\u062e\u062a\u200c\u0627\u0641\u0632\u0627\u0631<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0645\u0639\u0645\u0648\u0644\u0627\u064b \u062e\u06cc\u0631<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0644\u0647<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0631\u0627\u06cc\u062c<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0633\u0627\u0645\u0627\u0646\u0647\u200c\u0647\u0627\u06cc \u0633\u0627\u0632\u0645\u0627\u0646\u06cc\u060c \u062a\u062c\u0627\u0631\u062a \u0627\u0644\u06a9\u062a\u0631\u0648\u0646\u06cc\u06a9\u060c \u0627\u06cc\u0646\u062a\u0631\u0646\u062a \u0627\u0634\u06cc\u0627\u0621 \u0648 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627\u06cc \u0627\u0628\u0631\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0633\u0627\u0645\u0627\u0646\u0647\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062a\u0648\u0642\u0641 \u0622\u0646\u200c\u0647\u0627 \u0642\u0627\u0628\u0644 \u0642\u0628\u0648\u0644 \u0646\u06cc\u0633\u062a\u060c \u0645\u0627\u0646\u0646\u062f \u0628\u0631\u062e\u06cc \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u200c\u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u06cc\u0627 \u062e\u062f\u0645\u0627\u062a \u0628\u0633\u06cc\u0627\u0631 \u062d\u06cc\u0627\u062a\u06cc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u0645\u0632\u0627\u06cc\u0627\u06cc-high-availability\">\u0645\u0632\u0627\u06cc\u0627\u06cc High Availability<\/h2>\n\n\n\n<p>\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 High Availability \u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u06a9\u0627\u0647\u0634 \u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u060c \u062a\u062c\u0631\u0628\u0647 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0648 \u062a\u062f\u0627\u0648\u0645 \u0641\u0639\u0627\u0644\u06cc\u062a \u0633\u0627\u0632\u0645\u0627\u0646 \u0647\u0645 \u062a\u0627\u062b\u06cc\u0631 \u0628\u06af\u0630\u0627\u0631\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 HA \u062f\u0631 \u0627\u0628\u0631 \u0628\u0647 \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627\u06cc \u0622\u0646\u0644\u0627\u06cc\u0646 \u0648 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0645\u0647\u0645\u200c\u062a\u0631\u06cc\u0646 \u0645\u0632\u0627\u06cc\u0627\u06cc HA \u0639\u0628\u0627\u0631\u062a\u200c\u0627\u0646\u062f \u0627\u0632:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627: <\/strong>HA \u0627\u0645\u06a9\u0627\u0646 \u062f\u0633\u062a\u0631\u0633\u06cc \u0645\u062f\u0627\u0648\u0645 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0648 \u06a9\u0627\u0631\u06a9\u0646\u0627\u0646 \u0628\u0647 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627 \u0648 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u0631\u0627 \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u0648\u0627\u0628\u0633\u062a\u06af\u06cc \u0628\u0647 \u0632\u0645\u0627\u0646 \u06cc\u0627 \u0645\u06a9\u0627\u0646 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f.<\/li>\n\n\n\n<li><strong>\u062d\u0641\u0627\u0638\u062a \u0627\u0632 \u062f\u0627\u062f\u0647\u200c\u0647\u0627:<\/strong> \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc \u0648 \u062a\u06a9\u062b\u06cc\u0631 \u062f\u0627\u062f\u0647 \u0628\u0627\u0639\u062b \u0645\u06cc\u200c\u0634\u0648\u062f \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0645\u0647\u0645 \u062d\u062a\u06cc \u062f\u0631 \u0632\u0645\u0627\u0646 \u0628\u0631\u0648\u0632 \u062e\u0631\u0627\u0628\u06cc\u060c \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0627\u0642\u06cc \u0628\u0645\u0627\u0646\u0646\u062f \u0648 \u0631\u06cc\u0633\u06a9 \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0646 \u062f\u0627\u062f\u0647 \u06a9\u0627\u0647\u0634 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u062d\u0641\u0638 \u0627\u0639\u062a\u0628\u0627\u0631 \u0648 \u0627\u0639\u062a\u0645\u0627\u062f \u0645\u0634\u062a\u0631\u06cc\u0627\u0646: <\/strong>\u0627\u062e\u062a\u0644\u0627\u0644\u200c\u0647\u0627\u06cc \u0645\u06a9\u0631\u0631 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0631 \u062a\u0635\u0648\u06cc\u0631 \u0628\u0631\u0646\u062f \u062a\u0627\u062b\u06cc\u0631 \u0645\u0646\u0641\u06cc \u0628\u06af\u0630\u0627\u0631\u0646\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627 \u0628\u0627 \u06a9\u0627\u0647\u0634 \u0642\u0637\u0639\u06cc \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0628\u0647 \u062d\u0641\u0638 \u0627\u0639\u062a\u0645\u0627\u062f \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u0627\u0641\u0632\u0627\u06cc\u0634 \u0628\u0647\u0631\u0647\u200c\u0648\u0631\u06cc \u06a9\u0627\u0631\u06a9\u0646\u0627\u0646:<\/strong> \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0648\u062f\u0646 \u0633\u0627\u0645\u0627\u0646\u0647\u200c\u0647\u0627\u06cc \u06a9\u0627\u0631\u06cc \u0628\u0627\u0639\u062b \u0645\u06cc\u200c\u0634\u0648\u062f \u0641\u0631\u0627\u06cc\u0646\u062f\u0647\u0627\u06cc \u0633\u0627\u0632\u0645\u0627\u0646\u06cc \u0628\u062f\u0648\u0646 \u062a\u0648\u0642\u0641 \u0627\u062f\u0627\u0645\u0647 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u0646\u062f \u0648 \u06a9\u0627\u0631\u06a9\u0646\u0627\u0646 \u0628\u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0647 \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u062e\u0648\u062f \u062f\u0633\u062a\u0631\u0633\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0627\u0632 \u062a\u0639\u0647\u062f\u0627\u062a SLA: <\/strong>\u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0627\u0631\u0627\u0626\u0647\u200c\u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u062e\u062f\u0645\u0627\u062a \u0627\u0628\u0631\u06cc \u0648 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a\u200c\u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0631\u0639\u0627\u06cc\u062a \u062a\u0648\u0627\u0641\u0642\u200c\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc \u0633\u0637\u062d \u0633\u0631\u0648\u06cc\u0633 (SLA)\u060c \u0628\u0647 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u200c\u0647\u0627\u06cc HA \u0645\u062a\u06a9\u06cc \u0647\u0633\u062a\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u06a9\u0627\u0647\u0634 \u0631\u06cc\u0633\u06a9 \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0646 \u062f\u0631\u0622\u0645\u062f:<\/strong> \u062f\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u06a9\u0633\u0628\u200c\u0648\u06a9\u0627\u0631\u0647\u0627\u060c \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0633\u0631\u0648\u06cc\u0633 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0627\u0639\u062b \u0627\u062e\u062a\u0644\u0627\u0644 \u062f\u0631 \u0627\u0631\u0627\u0626\u0647 \u062e\u062f\u0645\u0627\u062a \u0648 \u0627\u06cc\u062c\u0627\u062f \u062e\u0633\u0627\u0631\u062a \u0645\u0627\u0644\u06cc \u0634\u0648\u062f. HA \u0628\u0647 \u06a9\u0627\u0647\u0634 \u0627\u06cc\u0646 \u0631\u06cc\u0633\u06a9 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u06a9\u0645\u06a9 \u0628\u0647 \u062a\u062f\u0627\u0648\u0645 \u06a9\u0633\u0628\u200c\u0648\u06a9\u0627\u0631:<\/strong> High Availability \u0628\u0647 \u0633\u0627\u0632\u0645\u0627\u0646 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f \u062d\u062a\u06cc \u062f\u0631 \u0632\u0645\u0627\u0646 \u062e\u0631\u0627\u0628\u06cc \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627 \u06cc\u0627 \u0627\u0646\u062c\u0627\u0645 \u062a\u0639\u0645\u06cc\u0631\u0627\u062a \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0631\u06cc\u0632\u06cc\u200c\u0634\u062f\u0647\u060c \u0641\u0639\u0627\u0644\u06cc\u062a \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc \u0628\u062f\u0648\u0646 \u0627\u062e\u062a\u0644\u0627\u0644 \u062c\u062f\u06cc \u0627\u062f\u0627\u0645\u0647 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u062f.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u0686\u0627\u0644\u0634-\u0647\u0627\u06cc-high-availability\">\u0686\u0627\u0644\u0634\u200c\u0647\u0627\u06cc High Availability<\/h2>\n\n\n\n<p>\u0627\u0641\u0632\u0627\u06cc\u0634 \u0633\u0637\u062d \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u067e\u06cc\u0686\u06cc\u062f\u06af\u06cc\u060c \u0647\u0632\u06cc\u0646\u0647 \u0648 \u0646\u06cc\u0627\u0632\u0645\u0646\u062f\u06cc\u200c\u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0647\u0645\u0631\u0627\u0647 \u0627\u0633\u062a. \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644\u060c \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc High Availability \u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0645\u0632\u0627\u06cc\u0627\u060c \u0686\u0627\u0644\u0634\u200c\u0647\u0627\u06cc\u06cc \u0646\u06cc\u0632 \u0628\u0647 \u0647\u0645\u0631\u0627\u0647 \u062f\u0627\u0631\u062f \u06a9\u0647 \u0628\u0627\u06cc\u062f \u062f\u0631 \u0637\u0631\u0627\u062d\u06cc \u0648 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0634\u0648\u0646\u062f. \u062f\u0631 \u0627\u062f\u0627\u0645\u0647 \u0645\u0647\u0645\u200c\u062a\u0631\u06cc\u0646 \u0686\u0627\u0644\u0634\u200c\u0647\u0627\u06cc High Availability \u0631\u0627 \u0628\u06cc\u0627\u0646 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u062f\u0633\u062a\u06cc\u0627\u0628\u06cc \u0628\u0647 \u06f1\u06f0\u06f0\u066a Uptime \u0639\u0645\u0644\u0627\u064b \u0627\u0645\u06a9\u0627\u0646\u200c\u067e\u0630\u06cc\u0631 \u0646\u06cc\u0633\u062a:<\/strong> \u0647\u06cc\u0686 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a\u06cc \u0646\u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0647\u0645\u06cc\u0634\u0647 \u0648 \u0628\u062f\u0648\u0646 \u062d\u062a\u06cc \u06cc\u06a9 \u0644\u062d\u0638\u0647 \u0627\u062e\u062a\u0644\u0627\u0644 \u0641\u0639\u0627\u0644 \u0628\u0645\u0627\u0646\u062f. \u062d\u062a\u06cc \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u067e\u0646\u062c \u06f9 (99.999%) \u0647\u0645 \u0686\u0646\u062f \u062f\u0642\u06cc\u0642\u0647 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0645\u062c\u0627\u0632 \u062f\u0631 \u0633\u0627\u0644 \u062f\u0627\u0631\u062f.<\/li>\n\n\n\n<li><strong>\u0627\u0641\u0632\u0627\u06cc\u0634 \u067e\u06cc\u0686\u06cc\u062f\u06af\u06cc \u0632\u06cc\u0631\u0633\u0627\u062e\u062a:<\/strong> \u0628\u0627 \u0627\u0636\u0627\u0641\u0647 \u0634\u062f\u0646 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc\u060c \u06a9\u0644\u0627\u0633\u062a\u0631\u06cc\u0646\u06af \u0648 \u0645\u06a9\u0627\u0646\u06cc\u0632\u0645\u200c\u0647\u0627\u06cc Failover\u060c \u062a\u0639\u062f\u0627\u062f \u0627\u062c\u0632\u0627\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0628\u06cc\u0634\u062a\u0631 \u0648 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0622\u0646 \u062f\u0634\u0648\u0627\u0631\u062a\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0639\u06cc\u0628\u200c\u06cc\u0627\u0628\u06cc \u0648 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0631\u0627 \u0647\u0645 \u067e\u06cc\u0686\u06cc\u062f\u0647\u200c\u062a\u0631 \u06a9\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u0647\u0632\u06cc\u0646\u0647\u200c\u0647\u0627\u06cc \u0628\u0627\u0644\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u0648 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc:<\/strong> \u0631\u0627\u0647\u200c\u0627\u0646\u062f\u0627\u0632\u06cc \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u060c \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u0634\u0628\u06a9\u0647 \u0627\u0636\u0627\u0641\u06cc\u060c \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u0645\u0627\u0646\u06cc\u062a\u0648\u0631\u06cc\u0646\u06af\u060c \u0644\u0627\u06cc\u0633\u0646\u0633 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631\u0647\u0627 \u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0686\u0646\u062f \u062f\u06cc\u062a\u0627\u0633\u0646\u062a\u0631 \u06cc\u0627 \u0632\u0648\u0646 \u0627\u0628\u0631\u06cc\u060c \u0647\u0632\u06cc\u0646\u0647 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u0628\u0647 \u0633\u0627\u0632\u0645\u0627\u0646 \u062a\u062d\u0645\u06cc\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627\u06cc \u0647\u0645\u200c\u0639\u0644\u062a (Common-Cause Failures):<\/strong> \u06af\u0627\u0647\u06cc \u06cc\u06a9 \u0639\u0627\u0645\u0644 \u0645\u0634\u062a\u0631\u06a9 \u0645\u0627\u0646\u0646\u062f \u0642\u0637\u0639\u06cc \u0628\u0631\u0642\u060c \u0622\u062a\u0634\u200c\u0633\u0648\u0632\u06cc \u06cc\u0627 \u062e\u0637\u0627\u06cc \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0686\u0646\u062f \u0645\u0624\u0644\u0641\u0647 \u0631\u0627 \u0628\u0647\u200c\u0637\u0648\u0631 \u0647\u0645\u200c\u0632\u0645\u0627\u0646 \u0627\u0632 \u06a9\u0627\u0631 \u0628\u06cc\u0646\u062f\u0627\u0632\u062f. \u06a9\u0627\u0647\u0634 \u0627\u06cc\u0646 \u0631\u06cc\u0633\u06a9 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0647 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc \u0648 \u062a\u0648\u0632\u06cc\u0639 \u0645\u0646\u0627\u0633\u0628 \u0645\u0646\u0627\u0628\u0639 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f.<\/li>\n\n\n\n<li><strong>\u062a\u0641\u0627\u0648\u062a \u0628\u06cc\u0646 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0641\u0646\u06cc \u0648 \u062a\u062c\u0631\u0628\u0647 \u0648\u0627\u0642\u0639\u06cc \u06a9\u0627\u0631\u0628\u0631\u0627\u0646:<\/strong> \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0633\u0631\u0648\u06cc\u0633 \u0627\u0632 \u0646\u0638\u0631 \u0641\u0646\u06cc \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0627\u0634\u062f\u060c \u0627\u0645\u0627 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u062a\u0627\u062e\u06cc\u0631 \u0632\u06cc\u0627\u062f \u06cc\u0627 \u0627\u0641\u062a \u0639\u0645\u0644\u06a9\u0631\u062f\u060c \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0622\u0646 \u0631\u0627 \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0628\u062f\u0627\u0646\u0646\u062f. \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644\u060c \u062a\u0646\u0647\u0627 \u0627\u0646\u062f\u0627\u0632\u0647\u200c\u06af\u06cc\u0631\u06cc Uptime \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06a9\u06cc\u0641\u06cc\u062a \u0633\u0631\u0648\u06cc\u0633 \u06a9\u0627\u0641\u06cc \u0646\u06cc\u0633\u062a.<\/li>\n\n\n\n<li><strong>\u0646\u06cc\u0627\u0632 \u0628\u0647 \u062a\u0633\u062a \u0648 \u067e\u0627\u06cc\u0634 \u0645\u062f\u0627\u0648\u0645:<\/strong> \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc HA \u067e\u0627\u06cc\u0627\u0646 \u06a9\u0627\u0631 \u0646\u06cc\u0633\u062a. \u0645\u06a9\u0627\u0646\u06cc\u0632\u0645\u200c\u0647\u0627\u06cc Failover\u060c \u0646\u0633\u062e\u0647\u200c\u0647\u0627\u06cc \u067e\u0634\u062a\u06cc\u0628\u0627\u0646 \u0648 \u0641\u0631\u0627\u06cc\u0646\u062f\u0647\u0627\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0628\u0627\u06cc\u062f \u0628\u0647\u200c\u0635\u0648\u0631\u062a \u0645\u0646\u0638\u0645 \u0622\u0632\u0645\u0627\u06cc\u0634 \u0634\u0648\u0646\u062f \u062a\u0627 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0628\u0631\u0648\u0632 \u062e\u0631\u0627\u0628\u06cc\u060c \u0645\u0637\u0627\u0628\u0642 \u0627\u0646\u062a\u0638\u0627\u0631 \u0639\u0645\u0644 \u06a9\u0646\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u0645\u062f\u06cc\u0631\u06cc\u062a \u0627\u0646\u062a\u0638\u0627\u0631\u0627\u062a \u0648 \u0628\u0648\u062f\u062c\u0647: <\/strong>\u062f\u0633\u062a\u06cc\u0627\u0628\u06cc \u0628\u0647 \u0633\u0637\u0648\u062d \u0628\u0633\u06cc\u0627\u0631 \u0628\u0627\u0644\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0631\u0627\u06cc \u0647\u0645\u0647 \u0633\u0627\u0632\u0645\u0627\u0646\u200c\u0647\u0627 \u0636\u0631\u0648\u0631\u06cc \u06cc\u0627 \u0627\u0642\u062a\u0635\u0627\u062f\u06cc \u0646\u06cc\u0633\u062a. \u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0647\u0645\u200c\u062a\u0631\u06cc\u0646 \u0686\u0627\u0644\u0634\u200c\u0647\u0627\u060c \u0627\u0646\u062a\u062e\u0627\u0628 \u0633\u0637\u062d\u06cc \u0627\u0632 High Availability \u0627\u0633\u062a \u06a9\u0647 \u0647\u0645 \u0646\u06cc\u0627\u0632\u0647\u0627\u06cc \u06a9\u0633\u0628\u200c\u0648\u06a9\u0627\u0631 \u0631\u0627 \u067e\u0648\u0634\u0634 \u062f\u0647\u062f \u0648 \u0647\u0645 \u0628\u0627 \u0628\u0648\u062f\u062c\u0647 \u0648 \u0645\u0646\u0627\u0628\u0639 \u0633\u0627\u0632\u0645\u0627\u0646 \u0633\u0627\u0632\u06af\u0627\u0631 \u0628\u0627\u0634\u062f.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u062c\u0645\u0639-\u0628\u0646\u062f\u06cc\">\u062c\u0645\u0639\u200c\u0628\u0646\u062f\u06cc<\/h2>\n\n\n\n<p>High Availability (HA) \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 \u0631\u0648\u06cc\u06a9\u0631\u062f\u0647\u0627 \u0648 \u0641\u0646\u0627\u0648\u0631\u06cc\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0647\u0634 \u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0648 \u062d\u0641\u0638 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0647\u062f\u0641 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u0641\u0632\u0648\u0646\u06af\u06cc\u060c Failover\u060c \u062a\u0648\u0632\u06cc\u0639 \u0628\u0627\u0631\u060c \u06a9\u0644\u0627\u0633\u062a\u0631\u06cc\u0646\u06af \u0648 \u062a\u06a9\u062b\u06cc\u0631 \u062f\u0627\u062f\u0647 \u0645\u062d\u0642\u0642 \u0645\u06cc\u200c\u0634\u0648\u062f \u062a\u0627 \u0633\u0631\u0648\u06cc\u0633 \u062d\u062a\u06cc \u062f\u0631 \u0632\u0645\u0627\u0646 \u0628\u0631\u0648\u0632 \u062e\u0631\u0627\u0628\u06cc \u0646\u06cc\u0632 \u0628\u0627 \u06a9\u0645\u062a\u0631\u06cc\u0646 \u0627\u062e\u062a\u0644\u0627\u0644 \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0627\u0642\u06cc \u0628\u0645\u0627\u0646\u062f.<\/p>\n\n\n\n<p>\u062f\u0631 \u0637\u0631\u0627\u062d\u06cc \u0645\u0639\u0645\u0627\u0631\u06cc\u200c\u0647\u0627\u06cc HA\u060c \u0634\u0627\u062e\u0635\u200c\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f Availability\u060c MTBF \u0648 MTTR \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0627\u0647\u0645\u06cc\u062a \u062f\u0627\u0631\u0646\u062f. \u0647\u0645\u0686\u0646\u06cc\u0646\u060c HA \u0628\u0627 \u0648\u062c\u0648\u062f \u0627\u0631\u062a\u0628\u0627\u0637 \u0646\u0632\u062f\u06cc\u06a9 \u0628\u0627 \u0645\u0641\u0627\u0647\u06cc\u0645\u06cc \u0645\u0627\u0646\u0646\u062f Disaster Recovery \u0648 Fault Tolerance\u060c \u0647\u062f\u0641 \u0648 \u06a9\u0627\u0631\u0628\u0631\u062f \u0645\u062a\u0641\u0627\u0648\u062a\u06cc \u062f\u0627\u0631\u062f\u061b HA \u0628\u0631 \u06a9\u0627\u0647\u0634 \u0627\u062e\u062a\u0644\u0627\u0644 \u062f\u0631 \u0633\u0631\u0648\u06cc\u0633 \u062a\u0645\u0631\u06a9\u0632 \u062f\u0627\u0631\u062f\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 DR \u0628\u0631\u0627\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u067e\u0633 \u0627\u0632 \u062d\u0648\u0627\u062f\u062b \u06af\u0633\u062a\u0631\u062f\u0647 \u0648 FT \u0628\u0631\u0627\u06cc \u0627\u062f\u0627\u0645\u0647 \u0641\u0639\u0627\u0644\u06cc\u062a \u0628\u062f\u0648\u0646 \u0648\u0642\u0641\u0647 \u0637\u0631\u0627\u062d\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n\n\n\n<p>\u0627\u0646\u062a\u062e\u0627\u0628 \u0633\u0637\u062d \u0645\u0646\u0627\u0633\u0628 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u06cc\u062f \u0628\u0631 \u0627\u0633\u0627\u0633 \u0646\u06cc\u0627\u0632\u0647\u0627\u06cc \u06a9\u0633\u0628\u200c\u0648\u06a9\u0627\u0631\u060c \u0645\u06cc\u0632\u0627\u0646 \u062a\u062d\u0645\u0644 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0648 \u0647\u0632\u06cc\u0646\u0647\u200c\u0647\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u0627\u0646\u062c\u0627\u0645 \u0634\u0648\u062f \u062a\u0627 \u0645\u06cc\u0627\u0646 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0633\u0631\u0648\u06cc\u0633 \u0648 \u067e\u06cc\u0686\u06cc\u062f\u06af\u06cc \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u062a\u0639\u0627\u062f\u0644 \u0628\u0631\u0642\u0631\u0627\u0631 \u0634\u0648\u062f.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>HA \u062f\u0631 \u0627\u0628\u0631 \u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0647\u0645\u200c\u062a\u0631\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f\u0647\u0627 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0647\u0634 \u0632\u0645\u0627\u0646 \u0627\u0632\u06a9\u0627\u0631\u0627\u0641\u062a\u0627\u062f\u06af\u06cc \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627 \u0648 \u062d\u0641\u0638 \u062f\u0633\u062a\u0631\u0633\u06cc \u0645\u062f\u0627\u0648\u0645 \u0628\u0647 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627 \u0648 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0627\u0633\u062a. \u0628\u0627 \u06af\u0633\u062a\u0631\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0627\u06cc\u0627\u0646\u0634 \u0627\u0628\u0631\u06cc\u060c \u0633\u0627\u0632\u0645\u0627\u0646\u200c\u0647\u0627 \u0627\u0646\u062a\u0638\u0627\u0631 \u062f\u0627\u0631\u0646\u062f \u062e\u062f\u0645\u0627\u062a \u0622\u0646\u200c\u0647\u0627 \u062d\u062a\u06cc \u062f\u0631 \u0632\u0645\u0627\u0646 \u0628\u0631\u0648\u0632 \u062e\u0631\u0627\u0628\u06cc \u06cc\u0627 \u0639\u0645\u0644\u06cc\u0627\u062a \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0647\u0645 \u062a\u0627 \u062d\u062f \u0627\u0645\u06a9\u0627\u0646 \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0627\u0642\u06cc \u0628\u0645\u0627\u0646\u062f.<\/p>\n","protected":false},"author":27,"featured_media":5338,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"coauthors":[91],"class_list":["post-5307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>HA \u0686\u06cc\u0633\u062a\u061f \u0622\u0634\u0646\u0627\u06cc\u06cc \u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627 \u062f\u0631 \u0627\u0628\u0631 \u0648 \u062a\u0641\u0627\u0648\u062a HA \u0648 DR - \u0628\u0644\u0627\u06af \u0647\u0645\u200c\u0631\u0648\u0634<\/title>\n<meta name=\"description\" content=\"HA \u0686\u06cc\u0633\u062a\u061f \u0645\u0639\u0631\u0641\u06cc \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627 (High Availability)\u060c \u0645\u0639\u0645\u0627\u0631\u06cc HA\u060c \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0633\u0646\u062c\u0634\u060c \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc\u060c \u0645\u0632\u0627\u06cc\u0627\u060c \u0686\u0627\u0644\u0634\u200c\u0647\u0627 \u0648 \u062a\u0641\u0627\u0648\u062a HA \u0648 DR\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hamravesh.com\/blog\/what-is-high-availability\/\" \/>\n<meta property=\"og:locale\" content=\"fa_IR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0622\u0634\u0646\u0627\u06cc\u06cc \u0628\u0627 High Availability\u061b \u0628\u0631\u0631\u0633\u06cc \u0645\u0639\u0645\u0627\u0631\u06cc \u0648 \u062a\u0641\u0627\u0648\u062a HA \u0628\u0627 Disaster Recovery\" \/>\n<meta property=\"og:description\" content=\"HA \u0686\u06cc\u0633\u062a\u061f \u0645\u0639\u0631\u0641\u06cc \u062f\u0633\u062a\u0631\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627 (High Availability)\u060c \u0645\u0639\u0645\u0627\u0631\u06cc HA\u060c \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0633\u0646\u062c\u0634\u060c \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc\u060c \u0645\u0632\u0627\u06cc\u0627\u060c \u0686\u0627\u0644\u0634\u200c\u0647\u0627 \u0648 \u062a\u0641\u0627\u0648\u062a HA \u0648 DR\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hamravesh.com\/blog\/what-is-high-availability\/\" \/>\n<meta property=\"og:site_name\" content=\"\u0628\u0644\u0627\u06af \u0647\u0645\u200c\u0631\u0648\u0634\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-24T12:30:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hamravesh.com\/blog\/wp-content\/uploads\/2026\/06\/hamravesh-what-is-high-availability01.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1201\" \/>\n\t<meta property=\"og:image:height\" content=\"565\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"\u0647\u0645\u200c\u0631\u0648\u0634\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0646\u0648\u0634\u062a\u0647 \u0634\u062f\u0647 \u062a\u0648\u0633\u0637\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u0647\u0645\u200c\u0631\u0648\u0634\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u0632\u0645\u0627\u0646 \u062a\u062e\u0645\u06cc\u0646\u06cc \u0645\u0637\u0627\u0644\u0639\u0647\" \/>\n\t<meta name=\"twitter:data2\" content=\"15 \u062f\u0642\u06cc\u0642\u0647\" \/>\n\t<meta name=\"twitter:label3\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data3\" content=\"\u0647\u0645\u200c\u0631\u0648\u0634\" \/>\n<script type=\"application\/ld+json\" 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