{"id":5899,"date":"2026-06-16T16:15:28","date_gmt":"2026-06-16T16:15:28","guid":{"rendered":"https:\/\/cloudsave.app\/knowledge-base\/mssql-transaction-log-full-recovery\/"},"modified":"2026-06-16T16:48:36","modified_gmt":"2026-06-16T16:48:36","slug":"%cf%80%ce%bb%ce%ae%cf%81%ce%b5%cf%82-transaction-log-%cf%83%cf%84%ce%bf%ce%bd-mssql-%cf%83%cf%84%cf%81%ce%b1%cf%84%ce%b7%ce%b3%ce%b9%ce%ba%ce%ad%cf%82-%cf%80%cf%81%cf%8c%ce%bb%ce%b7%cf%88%ce%b7%cf%82","status":"publish","type":"post","link":"https:\/\/cloudsave.app\/el\/knowledge-base\/%cf%80%ce%bb%ce%ae%cf%81%ce%b5%cf%82-transaction-log-%cf%83%cf%84%ce%bf%ce%bd-mssql-%cf%83%cf%84%cf%81%ce%b1%cf%84%ce%b7%ce%b3%ce%b9%ce%ba%ce%ad%cf%82-%cf%80%cf%81%cf%8c%ce%bb%ce%b7%cf%88%ce%b7%cf%82\/","title":{"rendered":"\u03a0\u03bb\u03ae\u03c1\u03b5\u03c2 Transaction Log \u03c3\u03c4\u03bf\u03bd MSSQL: \u03a3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ad\u03c2 \u03a0\u03c1\u03cc\u03bb\u03b7\u03c8\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03a4\u03b1\u03c7\u03b5\u03af\u03b1\u03c2 \u0391\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2"},"content":{"rendered":"<p>\u0393\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u0394\u03b9\u03b1\u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03c4\u03ad\u03c2 \u0392\u03ac\u03c3\u03b5\u03c9\u03bd \u0394\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd (DBAs) \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03bf\u03cd\u03c2 DevOps \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b1\u03c7\u03b5\u03b9\u03c1\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03bf\u03bd Microsoft SQL Server, \u03bb\u03af\u03b3\u03b5\u03c2 \u03b5\u03b9\u03b4\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03bf\u03cd\u03bd \u03c4\u03cc\u03c3\u03bf \u03ac\u03bc\u03b5\u03c3\u03bf \u03ac\u03b3\u03c7\u03bf\u03c2 \u03cc\u03c3\u03bf \u03c4\u03bf \u03a3\u03c6\u03ac\u03bb\u03bc\u03b1 9002: <em>\u03a4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd (transaction log) \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b2\u03ac\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u00abX\u00bb \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bb\u03ae\u03c1\u03b5\u03c2<\/em>. \u038c\u03c4\u03b1\u03bd \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03b3\u03b5\u03bc\u03af\u03c3\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03c5\u03be\u03b7\u03b8\u03b5\u03af, \u03b7 \u03b2\u03ac\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03ba\u03b1\u03b8\u03af\u03c3\u03c4\u03b1\u03c4\u03b1\u03b9 \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac \u03bc\u03cc\u03bd\u03bf \u03b3\u03b9\u03b1 \u03b1\u03bd\u03ac\u03b3\u03bd\u03c9\u03c3\u03b7 (read-only). \u038c\u03bb\u03b5\u03c2 \u03bf\u03b9 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b5\u03c2 <code>INSERT<\/code>, <code>UPDATE<\/code> \u03ba\u03b1\u03b9 <code>DELETE<\/code> \u03c3\u03c4\u03b1\u03bc\u03b1\u03c4\u03bf\u03cd\u03bd, \u03bf\u03b9 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2 \u03b1\u03c0\u03bf\u03c4\u03c5\u03b3\u03c7\u03ac\u03bd\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03b7 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae \u03b1\u03ba\u03b9\u03bd\u03b7\u03c4\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9.<\/p>\n<p>\u0397 \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c5\u03c0\u03bf\u03ba\u03b5\u03af\u03bc\u03b5\u03bd\u03b7\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c4\u03bf\u03c5 SQL Server, \u03b7 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b4\u03b9\u03ac\u03b3\u03bd\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ae\u03c2 \u03b1\u03b9\u03c4\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03ba\u03c4\u03ad\u03bb\u03b5\u03c3\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03b9\u03ce\u03bd \u03c4\u03b1\u03c7\u03b5\u03af\u03b1\u03c2 \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b5\u03c2 \u03b4\u03b5\u03be\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03b4\u03b9\u03b1\u03b8\u03b5\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2. \u0391\u03c5\u03c4\u03cc\u03c2 \u03bf \u03c0\u03b5\u03c1\u03b9\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c2 \u03bf\u03b4\u03b7\u03b3\u03cc\u03c2 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03b5\u03b9 \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03bf\u03cd\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd, \u03c4\u03bf\u03bd \u03c4\u03c1\u03cc\u03c0\u03bf \u03b5\u03c0\u03af\u03bb\u03c5\u03c3\u03b7\u03c2 \u03b5\u03bd\u03cc\u03c2 \u03c0\u03bb\u03ae\u03c1\u03bf\u03c5\u03c2 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03c3\u03b5 \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03ad\u03ba\u03c4\u03b1\u03ba\u03c4\u03b7\u03c2 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c4\u03c1\u03bf\u03c0\u03ae \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b1\u03bd\u03b5\u03bc\u03c6\u03ac\u03bd\u03b9\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2.<\/p>\n<h2>\u039a\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u0391\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae\u03c2 \u03c4\u03bf\u03c5 \u0391\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03a3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c4\u03bf\u03c5 SQL Server<\/h2>\n<p>\u0393\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03b7 \u03c0\u03c1\u03bf\u03b2\u03bb\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03b5\u03bd\u03cc\u03c2 \u03c0\u03bb\u03ae\u03c1\u03bf\u03c5\u03c2 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c0\u03c1\u03ce\u03c4\u03b1 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c0\u03ce\u03c2 \u03bf SQL Server \u03b5\u03b3\u03b3\u03c1\u03ac\u03c6\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c7\u03b5\u03b9\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1.<\/p>\n<h3>Write-Ahead Logging (WAL)<\/h3>\n<p>\u039f SQL Server \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c4\u03bf \u03c0\u03c1\u03c9\u03c4\u03cc\u03ba\u03bf\u03bb\u03bb\u03bf Write-Ahead Logging (WAL). \u039a\u03ac\u03b8\u03b5 \u03c6\u03bf\u03c1\u03ac \u03c0\u03bf\u03c5 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03c4\u03c1\u03bf\u03c0\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd, \u03b7 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03b5\u03b3\u03b3\u03c1\u03ac\u03c6\u03b5\u03c4\u03b1\u03b9 \u03c0\u03c1\u03ce\u03c4\u03b1 \u03c3\u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c3\u03c4\u03b7 \u03bc\u03bd\u03ae\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1 \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c6\u03c5\u03c3\u03b9\u03ba\u03cc \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c4\u03bf\u03bd \u03b4\u03af\u03c3\u03ba\u03bf, \u03c0\u03c1\u03b9\u03bd \u03b5\u03bd\u03b7\u03bc\u03b5\u03c1\u03c9\u03b8\u03bf\u03cd\u03bd \u03bf\u03b9 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03b5\u03bb\u03af\u03b4\u03b5\u03c2 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c3\u03c4\u03b1 \u03b1\u03c1\u03c7\u03b5\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b2\u03ac\u03c3\u03b7\u03c2 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd (MDF\/NDF). \u0391\u03c5\u03c4\u03cc \u03b5\u03b3\u03b3\u03c5\u03ac\u03c4\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf ACID (Atomicity, Consistency, Isolation, Durability), \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03cc\u03c4\u03b9 \u03c3\u03b5 \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac\u03c1\u03c1\u03b5\u03c5\u03c3\u03b7\u03c2, \u03bf SQL Server \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03ac\u03b2\u03b5\u03b9 (roll forward) \u03ae \u03bd\u03b1 \u03b1\u03bd\u03b1\u03b9\u03c1\u03ad\u03c3\u03b5\u03b9 (roll back) \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2.<\/p>\n<h3>\u0395\u03b9\u03ba\u03bf\u03bd\u03b9\u03ba\u03ac \u0391\u03c1\u03c7\u03b5\u03af\u03b1 \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 (VLFs) \u03ba\u03b1\u03b9 \u039a\u03c5\u03ba\u03bb\u03b9\u03ba\u03ae \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae<\/h3>\n<p>\u0395\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ac, \u03c4\u03bf \u03c6\u03c5\u03c3\u03b9\u03ba\u03cc \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd (LDF) \u03c7\u03c9\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b1, \u03bb\u03bf\u03b3\u03b9\u03ba\u03ac \u03c4\u03bc\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03bf\u03bd\u03bf\u03bc\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u0395\u03b9\u03ba\u03bf\u03bd\u03b9\u03ba\u03ac \u0391\u03c1\u03c7\u03b5\u03af\u03b1 \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 (Virtual Log Files &#8211; VLFs). \u03a4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03ba\u03c5\u03ba\u03bb\u03b9\u03ba\u03ac. \u039a\u03b1\u03b8\u03ce\u03c2 \u03bf\u03b9 \u03b5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b3\u03c1\u03ac\u03c6\u03bf\u03bd\u03c4\u03b1\u03b9, \u03b3\u03b5\u03bc\u03af\u03b6\u03bf\u03c5\u03bd \u03ad\u03bd\u03b1 VLF \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03ba\u03b9\u03bd\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03bf.<\/p>\n<p>\u038c\u03c4\u03b1\u03bd \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c6\u03c4\u03ac\u03c3\u03b5\u03b9 \u03c3\u03c4\u03bf \u03c4\u03ad\u03bb\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c6\u03c5\u03c3\u03b9\u03ba\u03bf\u03cd \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5, \u03c0\u03c1\u03bf\u03c3\u03c0\u03b1\u03b8\u03b5\u03af \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ad\u03c8\u03b5\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae. \u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ae\u03c3\u03b5\u03b9 \u03ad\u03bd\u03b1 VLF \u03bc\u03cc\u03bd\u03bf \u03b5\u03ac\u03bd \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf VLF \u03ad\u03c7\u03b5\u03b9 \u03b5\u03c0\u03b9\u03c3\u03b7\u03bc\u03b1\u03bd\u03b8\u03b5\u03af \u03c9\u03c2 <strong>\u03b1\u03bd\u03b5\u03bd\u03b5\u03c1\u03b3\u03cc<\/strong>. \u0395\u03ac\u03bd \u03cc\u03bb\u03b1 \u03c4\u03b1 VLFs \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03bd\u03b5\u03c1\u03b3\u03ac (\u03c0\u03bf\u03c5 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03bf\u03c5\u03bd \u03b5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b1\u03ba\u03cc\u03bc\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd SQL Server), \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ad\u03c8\u03b5\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae. \u0395\u03ac\u03bd \u03b7 \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b7 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 (auto-growth) \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03b9 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03b4\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03bf\u03c2 \u03c7\u03ce\u03c1\u03bf\u03c2 \u03c3\u03c4\u03bf\u03bd \u03b4\u03af\u03c3\u03ba\u03bf, \u03c4\u03bf \u03c6\u03c5\u03c3\u03b9\u03ba\u03cc \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03ce\u03bd\u03b5\u03b9. \u0395\u03ac\u03bd \u03bf \u03b4\u03af\u03c3\u03ba\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b3\u03b5\u03bc\u03ac\u03c4\u03bf\u03c2 \u03ae \u03b7 \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b7 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7, \u03b8\u03b1 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03a3\u03c6\u03ac\u03bb\u03bc\u03b1 9002.<\/p>\n<h3>\u03a0\u03b5\u03c1\u03b9\u03ba\u03bf\u03c0\u03ae (Truncation) \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03a3\u03c5\u03c1\u03c1\u03af\u03ba\u03bd\u03c9\u03c3\u03b7\u03c2 (Shrinking) \u03c4\u03bf\u03c5 \u0391\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2<\/h3>\n<p>\u039c\u03b9\u03b1 \u03ba\u03bf\u03b9\u03bd\u03ae \u03c0\u03b1\u03c1\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03b7 \u03c0\u03b5\u03c1\u03b9\u03ba\u03bf\u03c0\u03ae \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c6\u03c5\u03c3\u03b9\u03ba\u03bf\u03cd \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5.<br \/>\n*   <strong>\u03a0\u03b5\u03c1\u03b9\u03ba\u03bf\u03c0\u03ae \u0391\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 (Log Truncation):<\/strong> \u0397 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b5\u03c0\u03b9\u03c3\u03ae\u03bc\u03b1\u03bd\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \u03b5\u03bd\u03b5\u03c1\u03b3\u03ce\u03bd VLFs \u03c9\u03c2 \u03b1\u03bd\u03b5\u03bd\u03b5\u03c1\u03b3\u03ce\u03bd, \u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03bd \u03c7\u03ce\u03c1\u03bf \u03b4\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03bf \u03b3\u03b9\u03b1 \u03b5\u03c0\u03b1\u03bd\u03b1\u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7. <em>\u0394\u03b5\u03bd<\/em> \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 LDF \u03c3\u03c4\u03bf\u03bd \u03b4\u03af\u03c3\u03ba\u03bf.<br \/>\n*   <strong>\u03a3\u03c5\u03c1\u03c1\u03af\u03ba\u03bd\u03c9\u03c3\u03b7 \u0391\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 (Log Shrinking):<\/strong> \u0397 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03c6\u03c5\u03c3\u03b9\u03ba\u03ae\u03c2 \u03bc\u03b5\u03af\u03c9\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03b5\u03b3\u03ad\u03b8\u03bf\u03c5\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 LDF \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03bf\u03c6\u03ae\u03c2 \u03c7\u03ce\u03c1\u03bf\u03c5 \u03c3\u03c4\u03bf \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03cc \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1.<\/p>\n<p>\u03a3\u03c4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 Full, \u03b7 \u03c0\u03b5\u03c1\u03b9\u03ba\u03bf\u03c0\u03ae \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bc\u03b2\u03b1\u03af\u03bd\u03b5\u03b9 <em>\u03bc\u03cc\u03bd\u03bf<\/em> \u03cc\u03c4\u03b1\u03bd \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03c9\u03b8\u03b5\u03af \u03b5\u03c0\u03b9\u03c4\u03c5\u03c7\u03ce\u03c2 \u03ad\u03bd\u03b1 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd (\u03c5\u03c0\u03bf\u03b8\u03ad\u03c4\u03bf\u03bd\u03c4\u03b1\u03c2 \u03cc\u03c4\u03b9 \u03ba\u03b1\u03bc\u03af\u03b1 \u03ac\u03bb\u03bb\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b4\u03b5\u03bd \u03ba\u03c1\u03b1\u03c4\u03ac \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b5\u03bd\u03b5\u03c1\u03b3\u03cc).<\/p>\n<h2>\u0394\u03b9\u03ac\u03b3\u03bd\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03a3\u03c6\u03ac\u03bb\u03bc\u03b1\u03c4\u03bf\u03c2 \u00ab\u03a4\u03bf \u0391\u03c1\u03c7\u03b5\u03af\u03bf \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03a3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03a0\u03bb\u03ae\u03c1\u03b5\u03c2\u00bb (\u03a3\u03c6\u03ac\u03bb\u03bc\u03b1 9002)<\/h2>\n<p>\u038c\u03c4\u03b1\u03bd \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bb\u03ae\u03c1\u03b5\u03c2, \u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf \u03c3\u03b1\u03c2 \u03b2\u03ae\u03bc\u03b1 \u03b4\u03b5\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c3\u03b5\u03c4\u03b5 \u03c4\u03c5\u03c6\u03bb\u03ac \u03c7\u03ce\u03c1\u03bf \u03c3\u03c4\u03bf\u03bd \u03b4\u03af\u03c3\u03ba\u03bf \u03ae \u03bd\u03b1 \u03c3\u03c5\u03c1\u03c1\u03b9\u03ba\u03bd\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b1 \u03b1\u03c1\u03c7\u03b5\u03af\u03b1. \u03a0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03b5\u03c4\u03b5 <em>\u03b3\u03b9\u03b1\u03c4\u03af<\/em> \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03ba\u03bf\u03c0\u03b5\u03af. \u039f SQL Server \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03ad\u03bd\u03b1\u03bd \u03b5\u03bd\u03c3\u03c9\u03bc\u03b1\u03c4\u03c9\u03bc\u03ad\u03bd\u03bf \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c3\u03b1\u03c2 \u03c0\u03b5\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03c2 \u03c4\u03b9 \u03b5\u03bc\u03c0\u03bf\u03b4\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b1\u03bd\u03b1\u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03bc\u03ad\u03c3\u03c9 \u03c4\u03b7\u03c2 \u03c0\u03c1\u03bf\u03b2\u03bf\u03bb\u03ae\u03c2 \u03ba\u03b1\u03c4\u03b1\u03bb\u03cc\u03b3\u03bf\u03c5 <code>sys.databases<\/code>.<\/p>\n<p>\u0395\u03ba\u03c4\u03b5\u03bb\u03ad\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b1\u03ba\u03cc\u03bb\u03bf\u03c5\u03b8\u03b7 \u03b5\u03bd\u03c4\u03bf\u03bb\u03ae T-SQL \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03bd\u03c4\u03bf\u03c0\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03c3\u03c5\u03bc\u03c6\u03cc\u03c1\u03b7\u03c3\u03b7\u03c2:<\/p>\n<pre><code class=\"language-sql\">SELECT \n    name AS DatabaseName, \n    recovery_model_desc AS RecoveryModel, \n    log_reuse_wait_desc AS LogReuseWaitReason\nFROM sys.databases\nWHERE name = 'YourDatabaseName';\n<\/code><\/pre>\n<p>\u039c\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03be\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c4\u03c1\u03ad\u03c7\u03bf\u03c5\u03c3\u03b1 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c7\u03ce\u03c1\u03bf\u03c5 \u03c4\u03c9\u03bd \u03b1\u03c1\u03c7\u03b5\u03af\u03c9\u03bd \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c3\u03b1\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2:<\/p>\n<pre><code class=\"language-sql\">DBCC SQLPERF(LOGSPACE);\n<\/code><\/pre>\n<h3>\u039a\u03bf\u03b9\u03bd\u03ad\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 <code>log_reuse_wait_desc<\/code><\/h3>\n<ol>\n<li><strong>LOG_BACKUP:<\/strong> \u0397 \u03b2\u03ac\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 Full \u03ae Bulk-Logged \u03ba\u03b1\u03b9 \u03b4\u03b5\u03bd \u03ad\u03c7\u03b5\u03b9 \u03bb\u03b7\u03c6\u03b8\u03b5\u03af \u03c0\u03c1\u03cc\u03c3\u03c6\u03b1\u03c4\u03b1 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd. \u0391\u03c5\u03c4\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03b9\u03bf \u03ba\u03bf\u03b9\u03bd\u03ae \u03b1\u03b9\u03c4\u03af\u03b1.<\/li>\n<li><strong>ACTIVE_TRANSACTION:<\/strong> \u039c\u03b9\u03b1 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03bc\u03b5\u03b3\u03ac\u03bb\u03b7\u03c2 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1\u03c2 (\u03c0.\u03c7. \u03bc\u03b9\u03b1 \u03bc\u03b1\u03b6\u03b9\u03ba\u03ae \u03b1\u03bd\u03b1\u03b4\u03cc\u03bc\u03b7\u03c3\u03b7 \u03b5\u03c5\u03c1\u03b5\u03c4\u03b7\u03c1\u03af\u03bf\u03c5 \u03ae \u03bc\u03b9\u03b1 \u03be\u03b5\u03c7\u03b1\u03c3\u03bc\u03ad\u03bd\u03b7 \u03bc\u03b7 \u03b4\u03b5\u03c3\u03bc\u03b5\u03c5\u03bc\u03ad\u03bd\u03b7 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae) \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03b5\u03af \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b5\u03bd\u03b5\u03c1\u03b3\u03cc.<\/li>\n<li><strong>REPLICATION \/ CDC:<\/strong> \u0397 Transactional Replication \u03ae \u03c4\u03bf Change Data Capture (CDC) \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03bf Log Reader Agent \u03b4\u03b5\u03bd \u03ad\u03c7\u03b5\u03b9 \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03b5\u03af \u03b1\u03ba\u03cc\u03bc\u03b1 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2.<\/li>\n<li><strong>AVAILABILITY_REPLICA:<\/strong> \u03a3\u03b5 \u03bc\u03b9\u03b1 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03b4\u03b9\u03b1\u03b8\u03b5\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 AlwaysOn, \u03ad\u03bd\u03b1 \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03b5\u03cd\u03bf\u03bd \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03bf\u03c3\u03c5\u03bd\u03b4\u03b5\u03b4\u03b5\u03bc\u03ad\u03bd\u03bf \u03ae \u03c3\u03c5\u03b3\u03c7\u03c1\u03bf\u03bd\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c0\u03bf\u03bb\u03cd \u03b1\u03c1\u03b3\u03ac, \u03b1\u03bd\u03b1\u03b3\u03ba\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf \u03ba\u03cd\u03c1\u03b9\u03bf \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03b5\u03af \u03c4\u03b9\u03c2 \u03b5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03bc\u03ad\u03c7\u03c1\u03b9 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03b2\u03b5\u03b2\u03b1\u03b9\u03c9\u03b8\u03bf\u03cd\u03bd \u03c3\u03c4\u03bf \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03b5\u03cd\u03bf\u03bd.<\/li>\n<\/ol>\n<h2>\u03a3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ad\u03c2 \u03a4\u03b1\u03c7\u03b5\u03af\u03b1\u03c2 \u0391\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2: \u0395\u03c0\u03af\u03bb\u03c5\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03a0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03b7\u03bd \u03a0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae<\/h2>\n<p>\u0391\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b9\u03bc\u03ae <code>log_reuse_wait_desc<\/code> \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ad\u03c6\u03b5\u03c4\u03b1\u03b9, \u03b7 \u03b1\u03c0\u03cc\u03ba\u03c1\u03b9\u03c3\u03b7 \u03ad\u03ba\u03c4\u03b1\u03ba\u03c4\u03b7\u03c2 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b7\u03c2 \u03b8\u03b1 \u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03b5\u03b9. \u0391\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03bf\u03cd\u03bd \u03bf\u03b9 \u03c3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b1\u03c7\u03b5\u03af\u03b1\u03c2 \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03c0\u03b9\u03bf \u03ba\u03bf\u03b9\u03bd\u03ac \u03c3\u03b5\u03bd\u03ac\u03c1\u03b9\u03b1.<\/p>\n<h3>\u03a3\u03b5\u03bd\u03ac\u03c1\u03b9\u03bf 1: \u0395\u03bb\u03bb\u03b9\u03c0\u03ae \u03ae \u0391\u03c0\u03bf\u03c4\u03c5\u03c7\u03b7\u03bc\u03ad\u03bd\u03b1 \u0391\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03b1 \u0391\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u0391\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 (<code>LOG_BACKUP<\/code>)<\/h3>\n<p>\u0395\u03ac\u03bd \u03bf \u03c4\u03cd\u03c0\u03bf\u03c2 \u03b1\u03bd\u03b1\u03bc\u03bf\u03bd\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 <code>LOG_BACKUP<\/code>, \u03b7 \u03bb\u03cd\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03bb\u03ae: \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03c4\u03b5 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd.<\/p>\n<pre><code class=\"language-sql\">BACKUP LOG [YourDatabaseName] \nTO DISK = 'N:BackupsYourDatabaseName_EmergencyLog.trn' \nWITH COMPRESSION, STATS = 10;\n<\/code><\/pre>\n<p>\u039c\u03cc\u03bb\u03b9\u03c2 \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03c9\u03b8\u03b5\u03af \u03c4\u03bf \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2, \u03c4\u03b1 \u03b1\u03bd\u03b5\u03bd\u03b5\u03c1\u03b3\u03ac VLFs \u03b8\u03b1 \u03c0\u03b5\u03c1\u03b9\u03ba\u03bf\u03c0\u03bf\u03cd\u03bd \u03ba\u03b1\u03b9 \u03bf SQL Server \u03b8\u03b1 \u03c3\u03c5\u03bd\u03b5\u03c7\u03af\u03c3\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b5\u03c2. \u0395\u03ac\u03bd \u03bf \u03b4\u03af\u03c3\u03ba\u03bf\u03c2 \u03b1\u03bd\u03c4\u03b9\u03b3\u03c1\u03ac\u03c6\u03c9\u03bd \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b3\u03b5\u03bc\u03ac\u03c4\u03bf\u03c2, \u03af\u03c3\u03c9\u03c2 \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03c4\u03b5 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03c3\u03b5 \u03ad\u03bd\u03b1\u03bd \u03c0\u03c1\u03bf\u03c3\u03c9\u03c1\u03b9\u03bd\u03cc \u03ba\u03bf\u03b9\u03bd\u03cc\u03c7\u03c1\u03b7\u03c3\u03c4\u03bf \u03c6\u03ac\u03ba\u03b5\u03bb\u03bf \u03b4\u03b9\u03ba\u03c4\u03cd\u03bf\u03c5 \u03ae \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ae null (\u03b4\u03b5\u03bd \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ac\u03c4\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1, \u03b5\u03ba\u03c4\u03cc\u03c2 \u03b5\u03ac\u03bd \u03b7 \u03b2\u03ac\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03b1\u03bd\u03b1\u03c0\u03b1\u03c1\u03b1\u03b3\u03ce\u03b3\u03b9\u03bc\u03b7, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03bb\u03c5\u03c3\u03af\u03b4\u03b1 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2):<\/p>\n<pre><code class=\"language-sql\">-- \u03a0\u03a1\u039f\u0395\u0399\u0394\u039f\u03a0\u039f\u0399\u0397\u03a3\u0397: \u0391\u03c5\u03c4\u03cc \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03bb\u03c5\u03c3\u03af\u03b4\u03b1 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b8\u03ad\u03c4\u03b5\u03b9 \u03c3\u03b5 \u03ba\u03af\u03bd\u03b4\u03c5\u03bd\u03bf \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c3\u03b5 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03cc \u03c3\u03b7\u03bc\u03b5\u03af\u03bf.\n-- \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf \u03bc\u03cc\u03bd\u03bf \u03b5\u03ac\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03bf\u03bb\u03cd\u03c4\u03c9\u03c2 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03bf \u03ba\u03b1\u03b9 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ae\u03c3\u03c4\u03b5 \u03b1\u03bc\u03ad\u03c3\u03c9\u03c2 \u03bc\u03b5 \u03ad\u03bd\u03b1 \u03a0\u039b\u0397\u03a1\u0395\u03a3 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2.\nBACKUP LOG [YourDatabaseName] TO DISK = 'NUL';\n<\/code><\/pre>\n<h3>\u03a3\u03b5\u03bd\u03ac\u03c1\u03b9\u03bf 2: \u03a3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2 \u039c\u03b5\u03b3\u03ac\u03bb\u03b7\u03c2 \u0394\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1\u03c2 (<code>ACTIVE_TRANSACTION<\/code>)<\/h3>\n<p>\u0395\u03ac\u03bd \u03bc\u03b9\u03b1 \u03bc\u03b5\u03bc\u03bf\u03bd\u03c9\u03bc\u03ad\u03bd\u03b7 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03b5\u03ba\u03c4\u03b5\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03ce\u03c1\u03b5\u03c2, \u03b5\u03bc\u03c0\u03bf\u03b4\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b9\u03ba\u03bf\u03c0\u03ae \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03cc\u03bb\u03b7 \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1. \u03a0\u03c1\u03ce\u03c4\u03b1, \u03b5\u03bd\u03c4\u03bf\u03c0\u03af\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03b5\u03af \u03c4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1:<\/p>\n<pre><code class=\"language-sql\">DBCC OPENTRAN('YourDatabaseName');\n<\/code><\/pre>\n<p>\u0391\u03c5\u03c4\u03ae \u03b7 \u03b5\u03bd\u03c4\u03bf\u03bb\u03ae \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ad\u03c6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b1\u03bb\u03b1\u03b9\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b5\u03bd\u03b5\u03c1\u03b3\u03ae \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b1\u03bd\u03b1\u03b3\u03bd\u03c9\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03b4\u03b9\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2 \u03b4\u03b9\u03b1\u03ba\u03bf\u03bc\u03b9\u03c3\u03c4\u03ae (SPID). \u039c\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03c3\u03c5\u03b3\u03ba\u03b5\u03bd\u03c4\u03c1\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03ad\u03c1\u03b5\u03b9\u03b5\u03c2 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03bf \u03c4\u03b9 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf SPID \u03c5\u03c0\u03bf\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c3\u03b5 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ad\u03c2 \u03c0\u03c1\u03bf\u03b2\u03bf\u03bb\u03ad\u03c2 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7\u03c2 (DMVs):<\/p>\n<pre><code class=\"language-sql\">SELECT \n    s.session_id,\n    s.login_name,\n    s.host_name,\n    r.start_time,\n    r.status,\n    r.command,\n    t.text AS QueryText\nFROM sys.dm_exec_sessions s\nJOIN sys.dm_exec_requests r ON s.session_id = r.session_id\nCROSS APPLY sys.dm_exec_sql_text(r.sql_handle) t\nWHERE s.session_id = &lt;SPID_FROM_DBCC_OPENTRAN&gt;;\n<\/code><\/pre>\n<p>\u0395\u03ac\u03bd \u03b7 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03c0\u03c1\u03bf\u03b2\u03bb\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03b5\u03c1\u03ce\u03c4\u03b7\u03bc\u03b1 \u03ae \u03bc\u03b9\u03b1 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03c0\u03bf\u03c5 \u03ad\u03c7\u03b5\u03b9 \u03ba\u03bf\u03bb\u03bb\u03ae\u03c3\u03b5\u03b9, \u03af\u03c3\u03c9\u03c2 \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03bd\u03b1 \u03c4\u03b7\u03bd \u03c4\u03b5\u03c1\u03bc\u03b1\u03c4\u03af\u03c3\u03b5\u03c4\u03b5 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03bb\u03b5\u03c5\u03b8\u03b5\u03c1\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2.<\/p>\n<pre><code class=\"language-sql\">KILL &lt;SPID&gt;;\n<\/code><\/pre>\n<p><em>\u03a3\u03b7\u03bc\u03b5\u03af\u03c9\u03c3\u03b7: \u039f \u03c4\u03b5\u03c1\u03bc\u03b1\u03c4\u03b9\u03c3\u03bc\u03cc\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03c4\u03b5\u03c1\u03ac\u03c3\u03c4\u03b9\u03b1\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae\u03c2 \u03b8\u03b1 \u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03b1\u03bd\u03b1\u03af\u03c1\u03b5\u03c3\u03b7 (rollback), \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c1\u03ba\u03ad\u03c3\u03b5\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03cc \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03b8\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c0\u03c1\u03bf\u03c3\u03c9\u03c1\u03b9\u03bd\u03ac \u03b5\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd \u03b4\u03c1\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2. \u039c\u03b7\u03bd \u03b5\u03c0\u03b1\u03bd\u03b5\u03ba\u03ba\u03b9\u03bd\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03af\u03b1 SQL Server \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03bc\u03b9\u03b1\u03c2 \u03b1\u03bd\u03b1\u03af\u03c1\u03b5\u03c3\u03b7\u03c2, \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03b7 \u03b2\u03ac\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b8\u03b1 \u03b5\u03b9\u03c3\u03ad\u03bb\u03b8\u03b5\u03b9 \u03c3\u03b5 \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b5\u03c0\u03b1\u03bd\u03b5\u03ba\u03ba\u03af\u03bd\u03b7\u03c3\u03b7.<\/em><\/p>\n<h3>\u03a3\u03b5\u03bd\u03ac\u03c1\u03b9\u03bf 3: \u039a\u03b1\u03c4\u03b1\u03bd\u03bf\u03bc\u03ae \u03a7\u03ce\u03c1\u03bf\u03c5 \u0388\u03ba\u03c4\u03b1\u03ba\u03c4\u03b7\u03c2 \u0391\u03bd\u03ac\u03b3\u03ba\u03b7\u03c2 (\u039f \u03b4\u03af\u03c3\u03ba\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 100% \u03b3\u03b5\u03bc\u03ac\u03c4\u03bf\u03c2)<\/h3>\n<p>\u0395\u03ac\u03bd \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf LDF \u03ad\u03c7\u03b5\u03b9 \u03ba\u03b1\u03c4\u03b1\u03bd\u03b1\u03bb\u03ce\u03c3\u03b5\u03b9 \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03bf \u03c4\u03bf\u03bd \u03b4\u03af\u03c3\u03ba\u03bf, \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03ba\u03b1\u03bd \u03bd\u03b1 \u03b5\u03ba\u03c4\u03b5\u03bb\u03ad\u03c3\u03b5\u03c4\u03b5 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2, \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03bf SQL Server \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af \u03bc\u03b9\u03b1 \u03bc\u03b9\u03ba\u03c1\u03ae \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c7\u03ce\u03c1\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03ac\u03c8\u03b5\u03b9 \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03c4\u03bf \u03c3\u03c5\u03bc\u03b2\u03ac\u03bd \u03c4\u03bf\u03c5 \u03b1\u03bd\u03c4\u03b9\u03b3\u03c1\u03ac\u03c6\u03bf\u03c5 \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2. \u03a3\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03c3\u03b5\u03bd\u03ac\u03c1\u03b9\u03bf, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c3\u03b5\u03c4\u03b5 \u03ad\u03bd\u03b1 \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03b5\u03cd\u03bf\u03bd \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03b5 \u03ad\u03bd\u03b1\u03bd \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03cc \u03b4\u03af\u03c3\u03ba\u03bf \u03bc\u03b5 \u03b4\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03bf \u03c7\u03ce\u03c1\u03bf.<\/p>\n<pre><code class=\"language-sql\">ALTER DATABASE [YourDatabaseName]\nADD LOG FILE \n(\n    NAME = N'YourDatabaseName_Log2',\n    FILENAME = N'E:TempLogsYourDatabaseName_Log2.ldf',\n    SIZE = 5GB,\n    MAXSIZE = 50GB,\n    FILEGROWTH = 1GB\n);\n<\/code><\/pre>\n<p>\u0391\u03c5\u03c4\u03cc \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03b1\u03bc\u03ad\u03c3\u03c9\u03c2 \u03c3\u03c4\u03bf\u03bd SQL Server \u00ab\u03b1\u03bd\u03ac\u03c3\u03b1\u00bb. \u039c\u03cc\u03bb\u03b9\u03c2 \u03b7 \u03b2\u03ac\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c4\u03b5\u03b8\u03b5\u03af \u03c3\u03b5 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1, \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03c4\u03b5 \u03ad\u03bd\u03b1 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd, \u03b1\u03b4\u03b5\u03b9\u03ac\u03c3\u03c4\u03b5 \u03c4\u03bf \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03b5\u03cd\u03bf\u03bd \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03c6\u03b1\u03b9\u03c1\u03ad\u03c3\u03c4\u03b5 \u03c4\u03bf:<\/p>\n<pre><code class=\"language-sql\">-- 1. \u0394\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03c4\u03b5 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c4\u03bf \u03c0\u03b5\u03c1\u03b9\u03ba\u03cc\u03c8\u03b5\u03c4\u03b5\nBACKUP LOG [YourDatabaseName] TO DISK = '...';\n\n-- 2. \u0391\u03b4\u03b5\u03b9\u03ac\u03c3\u03c4\u03b5 \u03c4\u03bf \u03c0\u03c1\u03bf\u03c3\u03c9\u03c1\u03b9\u03bd\u03cc \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2\nDBCC SHRINKFILE (N'YourDatabaseName_Log2', EMPTYFILE);\n\n-- 3. \u0391\u03c6\u03b1\u03b9\u03c1\u03ad\u03c3\u03c4\u03b5 \u03c4\u03bf \u03c0\u03c1\u03bf\u03c3\u03c9\u03c1\u03b9\u03bd\u03cc \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2\nALTER DATABASE [YourDatabaseName] REMOVE FILE [YourDatabaseName_Log2];\n<\/code><\/pre>\n<h2>\u0392\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03a0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03a0\u03c1\u03cc\u03bb\u03b7\u03c8\u03b7 \u03ba\u03b1\u03b9 \u0394\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u0391\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03a3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd<\/h2>\n<p>\u0397 \u03b1\u03bd\u03c4\u03b9\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03b7 \u03c0\u03c1\u03bf\u03b2\u03bb\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03b3\u03c7\u03c9\u03c4\u03b9\u03ba\u03ae \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03b9 \u03c4\u03b1 SLAs. \u0397 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae \u03c0\u03c1\u03bf\u03bb\u03b7\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03ce\u03bd \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03c9\u03bd \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ce\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03b2\u03ac\u03c3\u03b7\u03c2 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03c7\u03b5\u03af\u03c1\u03b7\u03c3\u03b7\u03c2.<\/p>\n<h3>1. \u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae \u03bc\u03b9\u03b1\u03c2 \u03a3\u03c4\u03b9\u03b2\u03b1\u03c1\u03ae\u03c2, \u0391\u03c5\u03c4\u03bf\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b7\u03c2 \u03a3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ae\u03c2 \u0391\u03bd\u03c4\u03b9\u03b3\u03c1\u03ac\u03c6\u03c9\u03bd \u0391\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2<\/h3>\n<p>\u0395\u03ac\u03bd \u03bc\u03b9\u03b1 \u03b2\u03ac\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 Full, \u03c4\u03b1 \u03c3\u03c5\u03c7\u03bd\u03ac \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03b1 \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c5\u03c0\u03bf\u03c7\u03c1\u03b5\u03c9\u03c4\u03b9\u03ba\u03ac. \u0391\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03a3\u03c4\u03cc\u03c7\u03bf \u03a3\u03b7\u03bc\u03b5\u03af\u03bf\u03c5 \u0391\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 (RPO) \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03cc\u03b3\u03ba\u03bf \u03c4\u03c9\u03bd \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd, \u03c4\u03b1 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03b1 \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03ba\u03ac\u03b8\u03b5 5 \u03ad\u03c9\u03c2 15 \u03bb\u03b5\u03c0\u03c4\u03ac.<\/p>\n<p>\u039b\u03cd\u03c3\u03b5\u03b9\u03c2 \u03b1\u03bd\u03c4\u03b9\u03b3\u03c1\u03ac\u03c6\u03c9\u03bd \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c7\u03b5\u03af\u03c1\u03b7\u03c3\u03b7\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03c4\u03bf CloudSave, \u03b1\u03c0\u03bb\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1. \u039c\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c0\u03b5\u03c5\u03b8\u03b5\u03af\u03b1\u03c2 \u03b5\u03bd\u03c3\u03c9\u03bc\u03ac\u03c4\u03c9\u03c3\u03b7 \u03c3\u03c4\u03bf\u03bd SQL Server \u03bc\u03ad\u03c3\u03c9 VDI (Virtual Device Interface), \u03c4\u03bf CloudSave \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c3\u03c4\u03bf\u03c5\u03c2 DBAs \u03bd\u03b1 \u03b4\u03b9\u03b1\u03bc\u03bf\u03c1\u03c6\u03ce\u03bd\u03bf\u03c5\u03bd \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03b1 \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03b1\u03c1\u03c7\u03b5\u03af\u03c9\u03bd \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c3\u03c5\u03c7\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03b2\u03b1\u03c3\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c3\u03b5 \u03c0\u03bf\u03bb\u03b9\u03c4\u03b9\u03ba\u03ad\u03c2. \u0391\u03c5\u03c4\u03cc \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03c4\u03b1 \u03b1\u03c1\u03c7\u03b5\u03af\u03b1 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c0\u03b5\u03c1\u03b9\u03ba\u03cc\u03c0\u03c4\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b5\u03c7\u03ce\u03c2, \u03ba\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03c0\u03bf\u03b8\u03b7\u03ba\u03b5\u03cd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b5\u03ba\u03c4\u03cc\u03c2 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c3\u03af\u03b1\u03c2 \u03ae \u03c3\u03b5 \u03b1\u03bc\u03b5\u03c4\u03ac\u03b2\u03bb\u03b7\u03c4\u03bf \u03c7\u03ce\u03c1\u03bf \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7\u03c2 \u03c3\u03c4\u03bf cloud, \u03b1\u03c0\u03bf\u03c4\u03c1\u03ad\u03c0\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03b1\u03bd\u03b1\u03bc\u03bf\u03bd\u03ae\u03c2 <code>LOG_BACKUP<\/code> \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c0\u03b5\u03c1\u03af\u03c0\u03bb\u03bf\u03ba\u03b5\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b5\u03c2 SQL Agent.<\/p>\n<h3>2. \u03a3\u03c9\u03c3\u03c4\u03cc \u039c\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 \u0391\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03a3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03ba\u03b1\u03b9 \u0394\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7 \u03c4\u03c9\u03bd VLFs<\/h3>\n<p>\u0397 \u03b5\u03be\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b7 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 (auto-growth) \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bc\u03b5\u03b3\u03ad\u03b8\u03bf\u03c5\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c3\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03b5\u03c0\u03b9\u03ba\u03af\u03bd\u03b4\u03c5\u03bd\u03bf \u03b1\u03bd\u03c4\u03b9-\u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf. \u039f\u03b9 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b5\u03c2 \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b7\u03c2 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03b1\u03c0\u03b1\u03bd\u03b7\u03c1\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b1\u03cd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03b5\u03bd\u03ce \u03bf \u03b4\u03af\u03c3\u03ba\u03bf\u03c2 \u03b1\u03c1\u03c7\u03b9\u03ba\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03ba\u03ac (\u03b5\u03ba\u03c4\u03cc\u03c2 \u03b5\u03ac\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b7 \u03b7 \u0386\u03bc\u03b5\u03c3\u03b7 \u0391\u03c1\u03c7\u03b9\u03ba\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u0391\u03c1\u03c7\u03b5\u03af\u03c9\u03bd &#8211; Instant File Initialization, \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 <em>\u03b4\u03b5\u03bd<\/em> \u03b9\u03c3\u03c7\u03cd\u03b5\u03b9 \u03b3\u03b9\u03b1 \u03b1\u03c1\u03c7\u03b5\u03af\u03b1 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2).<\/p>\n<p>\u0395\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd, \u03bf\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ad\u03c2, \u03bc\u03b9\u03ba\u03c1\u03ad\u03c2 \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b5\u03c2 \u03b1\u03c5\u03be\u03ae\u03c3\u03b5\u03b9\u03c2 (\u03c0.\u03c7. \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac 10% \u03ae 50MB \u03c4\u03b7 \u03c6\u03bf\u03c1\u03ac) \u03bf\u03b4\u03b7\u03b3\u03bf\u03cd\u03bd \u03c3\u03b5 <strong>\u03ba\u03b1\u03c4\u03b1\u03ba\u03b5\u03c1\u03bc\u03b1\u03c4\u03b9\u03c3\u03bc\u03cc VLF<\/strong>. \u0388\u03bd\u03b1 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03bc\u03b5 \u03c7\u03b9\u03bb\u03b9\u03ac\u03b4\u03b5\u03c2 \u03bc\u03b9\u03ba\u03c1\u03bf\u03c3\u03ba\u03bf\u03c0\u03b9\u03ba\u03ac VLFs \u03b8\u03b1 \u03c5\u03c0\u03bf\u03b2\u03b1\u03b8\u03bc\u03af\u03c3\u03b5\u03b9 \u03c3\u03bf\u03b2\u03b1\u03c1\u03ac \u03c4\u03bf\u03c5\u03c2 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c5\u03c2 \u03b5\u03ba\u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b2\u03ac\u03c3\u03b7\u03c2 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd, \u03c4\u03b7\u03bd \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b1\u03bd\u03c4\u03b9\u03b3\u03c1\u03ac\u03c6\u03c9\u03bd \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03ba\u03b1\u03b8\u03c5\u03c3\u03c4\u03ad\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03bd\u03b1\u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2.<\/p>\n<ul>\n<li><strong>\u03a0\u03c1\u03bf\u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2:<\/strong> \u0391\u03bd\u03b1\u03bb\u03cd\u03c3\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b5\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b5\u03c2 \u03c3\u03c5\u03bd\u03c4\u03ae\u03c1\u03b7\u03c3\u03ae\u03c2 \u03c3\u03b1\u03c2 (\u03cc\u03c0\u03c9\u03c2 \u03b1\u03bd\u03b1\u03b4\u03bf\u03bc\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b5\u03c5\u03c1\u03b5\u03c4\u03b7\u03c1\u03af\u03c9\u03bd) \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 LDF \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c4\u03b9\u03c2 \u03c6\u03b9\u03bb\u03bf\u03be\u03b5\u03bd\u03ae\u03c3\u03b5\u03b9 \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7.<\/li>\n<li><strong>\u039f\u03c1\u03af\u03c3\u03c4\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b7 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7:<\/strong> \u0391\u03bb\u03bb\u03ac\u03be\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b7 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03b1\u03c0\u03cc \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc \u03c3\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 (\u03c0.\u03c7. 1GB \u03ae 5GB) \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03b5\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03c4\u03b1 VLFs \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c5\u03b3\u03b9\u03ad\u03c2 \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2.<\/li>\n<\/ul>\n<p>\u039c\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03be\u03b5\u03c4\u03b5 \u03c4\u03bf\u03bd \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc \u03c4\u03c9\u03bd VLFs \u03c3\u03b1\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf \u03b1\u03ba\u03cc\u03bb\u03bf\u03c5\u03b8\u03bf \u03b5\u03c1\u03ce\u03c4\u03b7\u03bc\u03b1 (\u03b3\u03b9\u03b1 SQL Server 2017+):<\/p>\n<pre><code class=\"language-sql\">SELECT \n    db_name(database_id) AS DatabaseName,\n    COUNT(vlf_sequence_number) AS VLF_Count\nFROM sys.dm_db_log_info(DB_ID('YourDatabaseName'));\n<\/code><\/pre>\n<p>\u0395\u03ac\u03bd \u03bf \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 \u03c4\u03c9\u03bd VLFs \u03c3\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc 500, \u03c3\u03ba\u03b5\u03c6\u03c4\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c4\u03b5 \u03bc\u03b9\u03b1 \u03c0\u03b5\u03c1\u03af\u03bf\u03b4\u03bf \u03c7\u03b1\u03bc\u03b7\u03bb\u03ae\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2, \u03bd\u03b1 \u03c3\u03c5\u03c1\u03c1\u03b9\u03ba\u03bd\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03b5 \u03b5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c4\u03bf \u03b1\u03c5\u03be\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c7\u03b5\u03b9\u03c1\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03b1 \u03c0\u03af\u03c3\u03c9 \u03c3\u03c4\u03bf \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bc\u03b5\u03bd\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c3\u03b5 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b1 \u03c4\u03bc\u03ae\u03bc\u03b1\u03c4\u03b1.<\/p>\n<h3>3. \u0392\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u039b\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ce\u03bd \u03a3\u03c5\u03bd\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7\u03c2 \u0395\u03c5\u03c1\u03b5\u03c4\u03b7\u03c1\u03af\u03c9\u03bd<\/h3>\n<p>\u039f\u03b9 \u03b1\u03bd\u03b1\u03b4\u03bf\u03bc\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b5\u03c5\u03c1\u03b5\u03c4\u03b7\u03c1\u03af\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03ac\u03c6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c0\u03bb\u03ae\u03c1\u03c9\u03c2, \u03b1\u03ba\u03cc\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 Bulk-Logged (\u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03c4\u03cd\u03c0\u03bf \u03c4\u03bf\u03c5 \u03b5\u03c5\u03c1\u03b5\u03c4\u03b7\u03c1\u03af\u03bf\u03c5). \u0397 \u03b1\u03bd\u03b1\u03b4\u03cc\u03bc\u03b7\u03c3\u03b7 \u03b5\u03bd\u03cc\u03c2 \u03b5\u03c5\u03c1\u03b5\u03c4\u03b7\u03c1\u03af\u03bf\u03c5 500GB \u03b8\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c4\u03bf\u03c5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03bf\u03bd 500GB \u03b5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ce\u03bd \u03c3\u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd.<\/p>\n<p>\u0393\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03c1\u03b9\u03ac\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf\u03bd \u03cc\u03b3\u03ba\u03bf \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03c3\u03c5\u03bd\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7:<br \/>\n*   \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 <code>SORT_IN_TEMPDB = ON<\/code> \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b1\u03bd\u03b1\u03b4\u03cc\u03bc\u03b7\u03c3\u03b7 \u03b5\u03c5\u03c1\u03b5\u03c4\u03b7\u03c1\u03af\u03c9\u03bd. \u0391\u03c5\u03c4\u03cc \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03b9 \u03c4\u03b7 \u03c6\u03ac\u03c3\u03b7 \u03c4\u03b1\u03be\u03b9\u03bd\u03cc\u03bc\u03b7\u03c3\u03b7\u03c2 \u03c3\u03c4\u03bf TempDB, \u03bc\u03b5\u03b9\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf \u03b2\u03ac\u03c1\u03bf\u03c2 \u03c3\u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c4\u03b7\u03c2 \u03b2\u03ac\u03c3\u03b7\u03c2 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7.<br \/>\n*   \u039c\u03b5\u03c4\u03b1\u03b2\u03b5\u03af\u03c4\u03b5 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd <em>\u03b1\u03bd\u03b1\u03b4\u03cc\u03bc\u03b7\u03c3\u03b7<\/em> (rebuild) \u03b5\u03c5\u03c1\u03b5\u03c4\u03b7\u03c1\u03af\u03c9\u03bd \u03c3\u03c4\u03b7\u03bd <em>\u03b1\u03bd\u03b1\u03b4\u03b9\u03bf\u03c1\u03b3\u03ac\u03bd\u03c9\u03c3\u03b7<\/em> (reorganize) \u03b5\u03c5\u03c1\u03b5\u03c4\u03b7\u03c1\u03af\u03c9\u03bd \u03cc\u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03bd, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03bf\u03b9 \u03b1\u03bd\u03b1\u03b4\u03b9\u03bf\u03c1\u03b3\u03b1\u03bd\u03ce\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b9\u03bf \u03b1\u03c0\u03bf\u03b4\u03bf\u03c4\u03b9\u03ba\u03ad\u03c2 \u03cc\u03c3\u03bf\u03bd \u03b1\u03c6\u03bf\u03c1\u03ac \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae \u03ba\u03b1\u03b9 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03bf\u03cd\u03bd \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03b9\u03c1\u03b5\u03b8\u03b5\u03af \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03b7 \u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1.<br \/>\n*   \u039f\u03bc\u03b1\u03b4\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b5\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b5\u03c2 <code>DELETE<\/code> \u03ae <code>UPDATE<\/code>. \u0391\u03bd\u03c4\u03af \u03bd\u03b1 \u03b4\u03b9\u03b1\u03b3\u03c1\u03ac\u03c8\u03b5\u03c4\u03b5 10 \u03b5\u03ba\u03b1\u03c4\u03bf\u03bc\u03bc\u03cd\u03c1\u03b9\u03b1 \u03c3\u03b5\u03b9\u03c1\u03ad\u03c2 \u03c3\u03b5 \u03bc\u03af\u03b1 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae, \u03b4\u03b9\u03b1\u03b3\u03c1\u03ac\u03c8\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03b5 \u03bf\u03bc\u03ac\u03b4\u03b5\u03c2 \u03c4\u03c9\u03bd 50.000, \u03b4\u03b5\u03c3\u03bc\u03b5\u03cd\u03bf\u03bd\u03c4\u03b1\u03c2 (committing) \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03b1 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03b1 \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03ba\u03cc\u03c8\u03bf\u03c5\u03bd \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03bf\u03bc\u03ac\u03b4\u03c9\u03bd.<\/p>\n<h3>4. \u03a0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03cd\u03b8\u03b7\u03c3\u03b7 \u03a4\u03bf\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03ce\u03bd \u03a5\u03c8\u03b7\u03bb\u03ae\u03c2 \u0394\u03b9\u03b1\u03b8\u03b5\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u0391\u03bd\u03b1\u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2<\/h3>\n<p>\u03a3\u03c4\u03b9\u03c2 \u03bf\u03bc\u03ac\u03b4\u03b5\u03c2 \u03b4\u03b9\u03b1\u03b8\u03b5\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 AlwaysOn, \u03c4\u03bf \u03ba\u03cd\u03c1\u03b9\u03bf \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03ba\u03cc\u03c8\u03b5\u03b9 \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03ad\u03c7\u03c1\u03b9 \u03bf\u03b9 \u03b5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03bd\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bd \u03b5\u03c0\u03b9\u03b2\u03b5\u03b2\u03b1\u03b9\u03c9\u03b8\u03b5\u03af \u03c3\u03b5 \u03cc\u03bb\u03b1 \u03c4\u03b1 \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03b1 \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03b5\u03cd\u03bf\u03bd\u03c4\u03b1 \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03b1.<\/p>\n<p>\u0395\u03ac\u03bd \u03ad\u03bd\u03b1 \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03b5\u03cd\u03bf\u03bd \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03b2\u03b3\u03b5\u03b9 \u03b5\u03ba\u03c4\u03cc\u03c2 \u03c3\u03cd\u03bd\u03b4\u03b5\u03c3\u03b7\u03c2 \u03ae \u03b5\u03ac\u03bd \u03c4\u03bf \u03b5\u03cd\u03c1\u03bf\u03c2 \u03b6\u03ce\u03bd\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03ba\u03c4\u03cd\u03bf\u03c5 \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c3\u03c5\u03bc\u03b2\u03b1\u03b4\u03af\u03c3\u03b5\u03b9 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03c1\u03c5\u03b8\u03bc\u03cc \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c4\u03bf\u03c5 \u03ba\u03cd\u03c1\u03b9\u03bf\u03c5, \u03b7 \u03bf\u03c5\u03c1\u03ac \u03b1\u03c0\u03bf\u03c3\u03c4\u03bf\u03bb\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03cd\u03c1\u03b9\u03bf\u03c5 \u03b8\u03b1 \u03bc\u03b5\u03b3\u03b1\u03bb\u03ce\u03c3\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b8\u03b1 \u03b3\u03b5\u03bc\u03af\u03c3\u03b5\u03b9 (\u03c4\u03cd\u03c0\u03bf\u03c2 \u03b1\u03bd\u03b1\u03bc\u03bf\u03bd\u03ae\u03c2 <code>AVAILABILITY_REPLICA<\/code>).<\/p>\n<p>\u0395\u03c6\u03b1\u03c1\u03bc\u03cc\u03c3\u03c4\u03b5 \u03c3\u03c4\u03b9\u03b2\u03b1\u03c1\u03ae \u03c0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03cd\u03b8\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03bc\u03b5\u03c4\u03c1\u03b7\u03c4\u03ae \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 <code>SQLServer:Replica &gt; Log Send Queue<\/code>. \u0395\u03ac\u03bd \u03ad\u03bd\u03b1 \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03b5\u03cd\u03bf\u03bd \u03b1\u03bd\u03c4\u03af\u03b3\u03c1\u03b1\u03c6\u03bf \u03c7\u03b1\u03b8\u03b5\u03af \u03bc\u03cc\u03bd\u03b9\u03bc\u03b1, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c4\u03bf \u03b1\u03c6\u03b1\u03b9\u03c1\u03ad\u03c3\u03b5\u03c4\u03b5 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u039f\u03bc\u03ac\u03b4\u03b1 \u0394\u03b9\u03b1\u03b8\u03b5\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ae \u03bd\u03b1 \u03b1\u03bd\u03b1\u03c3\u03c4\u03b5\u03af\u03bb\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c8\u03b5\u03c4\u03b5 \u03c3\u03c4\u03bf \u03ba\u03cd\u03c1\u03b9\u03bf \u03b1\u03c1\u03c7\u03b5\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03ba\u03bf\u03c0\u03b5\u03af.<\/p>\n<h2>\u03a3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03b1<\/h2>\n<p>\u0397 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03b7 \u03b5\u03bd\u03cc\u03c2 \u03c0\u03bb\u03ae\u03c1\u03bf\u03c5\u03c2 \u03b1\u03c1\u03c7\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03b9\u03b1\u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03c4\u03ad\u03c2 \u03b2\u03ac\u03c3\u03b5\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd, \u03b1\u03bb\u03bb\u03ac \u03b4\u03b5\u03bd \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03bf\u03b4\u03b7\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03c0\u03b1\u03c1\u03b1\u03c4\u03b5\u03c4\u03b1\u03bc\u03ad\u03bd\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2. \u039a\u03b1\u03c4\u03b1\u03bd\u03bf\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03bf\u03cd\u03c2 \u03c4\u03bf\u03c5 Write-Ahead Logging \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd VLFs, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03b3\u03bd\u03ce\u03c3\u03b5\u03c4\u03b5 \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b1 \u03c4\u03b7 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ae \u03b1\u03b9\u03c4\u03af\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf <code>sys.databases<\/code> \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03cc\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae 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\u03b2\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c1\u03bf\u03c5\u03c4\u03b9\u03bd\u03ce\u03bd \u03c3\u03c5\u03bd\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c0\u03bb\u03b1\u03c4\u03c6\u03bf\u03c1\u03bc\u03ce\u03bd \u03b1\u03bd\u03c4\u03b9\u03b3\u03c1\u03ac\u03c6\u03c9\u03bd \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c7\u03b5\u03af\u03c1\u03b7\u03c3\u03b7\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03c4\u03bf CloudSave, \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03b2\u03bf\u03bb\u03ae \u03b1\u03c5\u03c3\u03c4\u03b7\u03c1\u03ce\u03bd, \u03b1\u03c5\u03c4\u03bf\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03c9\u03bd \u03c0\u03c1\u03bf\u03b3\u03c1\u03b1\u03bc\u03bc\u03ac\u03c4\u03c9\u03bd \u03b1\u03bd\u03c4\u03b9\u03b3\u03c1\u03ac\u03c6\u03c9\u03bd \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 \u03b1\u03c1\u03c7\u03b5\u03af\u03c9\u03bd \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2, \u03b8\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03c4\u03b1 \u03b1\u03c1\u03c7\u03b5\u03af\u03b1 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c3\u03b1\u03c2 \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03bf\u03c5\u03bd \u03c5\u03b3\u03b9\u03ae, \u03c0\u03b5\u03c1\u03b9\u03ba\u03bf\u03bc\u03bc\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03ad\u03c4\u03bf\u03b9\u03bc\u03b1 \u03bd\u03b1 \u03c5\u03c0\u03bf\u03c3\u03c4\u03b7\u03c1\u03af\u03be\u03bf\u03c5\u03bd \u03c6\u03cc\u03c1\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>** Discover expert strategies for preventing and resolving MSSQL transaction log full errors (Error 9002). Learn rapid recovery techniques, VLF management, and architectural best practices for DBAs.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_title":"MSSQL Transaction Log Full: Prevention & Recovery","rank_math_description":"** Discover expert strategies for preventing and resolving MSSQL transaction log full errors (Error 9002). 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