{"id":89,"date":"2009-06-29T04:09:25","date_gmt":"2009-06-29T04:09:25","guid":{"rendered":"http:\/\/www.backupassist.com\/blog\/support\/exchange-server-database-corruption-can-prevent-backups-from-completing\/"},"modified":"2019-11-13T09:11:26","modified_gmt":"2019-11-13T09:11:26","slug":"exchange-server-database-corruption-can-prevent-backups-from-completing","status":"publish","type":"post","link":"https:\/\/www.backupassist.com\/blog\/exchange-server-database-corruption-can-prevent-backups-from-completing","title":{"rendered":"Exchange Server Database corruption can prevent backups from completing"},"content":{"rendered":"<p>Hi All,<\/p>\n<p>We recently had a support case where an Exchange 2003 Server simply wouldn&#8217;t back up with NTBackup. The error in the NTBackup log was:<\/p>\n<blockquote><p>The &#8216;Microsoft Information Store&#8217; returned &#8216;Backup is already active.<br \/>\n&#8216; from a call to &#8216;HrESEBackupSetup()&#8217; additional data &#8216;-&#8216;The &#8216;Microsoft<br \/>\n&#8230; Information Store&#8217; returned &#8216;Functions called in an invalid sequence.<br \/>\n&#8216; from a call to &#8216;HrESEBackupClose()&#8217; additional data &#8216;-&#8216;<\/p><\/blockquote>\n<p>In the event log, there were errors such as this:<\/p>\n<blockquote><p>\nInformation Store (9880) Callback function call ErrESECBPrepareInstanceForBackup ended with error 0xC7FE1F45 Instance not found<\/p><\/blockquote>\n<p>Our client was confused as to why he could perform an image backup on his computer (using a different product) but not backup Exchange using BackupAssist.<\/p>\n<p>We did integrity checks on the databases using isinteg and eseutil but they showed nothing strange.<\/p>\n<p>Eventually, we worked with him to rebuild the pub and priv1 databases, and this reportedly fixed the issue.<\/p>\n<p>Excerpts from my support emails with our client are included below, in case anyone else runs into the problem.<\/p>\n<p>The reason why imaging backups would work is because when doing an image, there is no consistency check done on the database, like there is with a streaming backup (which is the kind that NTBackup does). An image will capture the corrupted edb files, and not tell you that there is a problem. Some imaging products won&#8217;t notify the Exchange VSS writer (which incidentally is disabled on SBS2003 by default) so logs won&#8217;t get truncated either.<\/p>\n<p>I hope this helps if anyone else runs into weird errors when backing up Exchange Server.<\/p>\n<p>Regards,<\/p>\n<p>Linus<\/p>\n<blockquote><p>\nHave you seen in this article &#8211; they have a diagnosis procedure based on eseutil:<\/p>\n<p>http:\/\/support.microsoft.com\/kb\/313184<\/p>\n<p>If the eseutil steps don&#8217;t yield any results, then it might be best to recreate the public folder store.<\/p>\n<p>I have been reading up on the best way to do it (whether it&#8217;s better to use a tool, or manually) &#8211; and it looks like the best thing to do is to simply open up the public folders in Outlook, drag and drop them to a new PST file. Then create a new public store (dismount the old one, rename the old pub1.edb and pub1.stm files, create new files, and moutn the database), set permissions back on the public store, and copy the data back.<\/p>\n<p>Detailed instructions are given at the same MS KB article:<\/p>\n<p>http:\/\/support.microsoft.com\/kb\/313184<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Hi All, We recently had a support case where an Exchange 2003 Server simply wouldn&#8217;t back up with NTBackup. The error in the NTBackup log was: The &#8216;Microsoft Information Store&#8217; returned &#8216;Backup is already active. &#8216; from a call to &#8216;HrESEBackupSetup()&#8217; additional data &#8216;-&#8216;The &#8216;Microsoft &#8230; Information Store&#8217; returned &#8216;Functions called in an invalid sequence. &#8230; <a title=\"Exchange Server Database corruption can prevent backups from completing\" class=\"read-more\" href=\"https:\/\/www.backupassist.com\/blog\/exchange-server-database-corruption-can-prevent-backups-from-completing\">Read more <span class=\"screen-reader-text\">Exchange Server Database corruption can prevent backups from completing<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":13831,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,760],"tags":[],"class_list":["post-89","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-support","category-legacy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Exchange Server Database corruption can prevent backups from completing - Cyber Resilience Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.backupassist.com\/blog\/exchange-server-database-corruption-can-prevent-backups-from-completing\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Exchange Server Database corruption can prevent backups from completing - Cyber Resilience Blog\" \/>\n<meta property=\"og:description\" content=\"Hi All, We recently had a support case where an Exchange 2003 Server simply wouldn&#8217;t back up with NTBackup. The error in the NTBackup log was: The &#8216;Microsoft Information Store&#8217; returned &#8216;Backup is already active. &#8216; from a call to &#8216;HrESEBackupSetup()&#8217; additional data &#8216;-&#8216;The &#8216;Microsoft &#8230; Information Store&#8217; returned &#8216;Functions called in an invalid sequence. ... 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He founded BackupAssist in 2002 \u2014 making him one of the longest-standing voices in Windows backup and data protection \u2014 and has spent the decades since talking to IT administrators around the world about what actually goes wrong, and why. His interest in data loss isn't abstract. Early in his career, he was working at the Monash University help desk when a student came in with a floppy disk that wouldn't read. They tried everything. None of their drives could read it either. The disk held her entire PhD dissertation \u2014 years of work \u2014 and it was the only copy. She broke down in tears. There was nothing he could do. Five years later, he wrote the first version of BackupAssist. Linus holds a Bachelor of Science in Computer Science and has held Microsoft Certified Solution Developer and Sun Certified Java Programmer credentials. More recently, he has completed digital forensics and cyber-security courses through the Black Hat Conference. He has spoken on information security and cryptography at Infosecurity Europe, addressed politicians and policymakers at Australian Parliament House, presented to SMB IT administrators at the IT Pro Experts Conference, and served as a guest lecturer to Cyber Security master's students at the University of Melbourne. On this blog, Linus writes about backup strategy and the technical side of cyber-resilience \u2014 drawing on 24 years of product development and direct conversation with the IT professionals BackupAssist is built for. 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He founded BackupAssist in 2002 \u2014 making him one of the longest-standing voices in Windows backup and data protection \u2014 and has spent the decades since talking to IT administrators around the world about what actually goes wrong, and why. His interest in data loss isn't abstract. Early in his career, he was working at the Monash University help desk when a student came in with a floppy disk that wouldn't read. They tried everything. None of their drives could read it either. The disk held her entire PhD dissertation \u2014 years of work \u2014 and it was the only copy. She broke down in tears. There was nothing he could do. Five years later, he wrote the first version of BackupAssist. Linus holds a Bachelor of Science in Computer Science and has held Microsoft Certified Solution Developer and Sun Certified Java Programmer credentials. More recently, he has completed digital forensics and cyber-security courses through the Black Hat Conference. He has spoken on information security and cryptography at Infosecurity Europe, addressed politicians and policymakers at Australian Parliament House, presented to SMB IT administrators at the IT Pro Experts Conference, and served as a guest lecturer to Cyber Security master's students at the University of Melbourne. On this blog, Linus writes about backup strategy and the technical side of cyber-resilience \u2014 drawing on 24 years of product development and direct conversation with the IT professionals BackupAssist is built for. 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