People don’t give backups the importance it deserves. Today I’ve been woked up by a call asking for help with an Exchange Server.
Digging into Event logs I found the problem: Corrupted Mailbox Database.
At '03/08/2015 08:22:08', the copy of database 'Mailbox Database 0640250043' on this server encountered an error during the mount operation. For more information, consult the Event log on the server for "ExchangeStoreDb" or "MSExchangeRepl" events. The mount operation will be tried again automatically.
Active Manager failed to mount database Mailbox Database 0640250043 on server LITIO. Error: An Active Manager operation failed. Error: The database action failed. Error: Operation failed with message: MapiExceptionDatabaseError: Unable to mount database. (hr=0x80004005, ec=1108)
Information Store - Mailbox Database 0640250043 (13252) Mailbox Database 0640250043: Unable to read the header of logfile C:\Program Files\Microsoft\Exchange Server\V15\Mailbox\Mailbox Database 0640250043\E00.log. Error -541.
For more information, click http://www.microsoft.com/contentredirect.asp.
When I asked for backups I’ve got the worst answer possible: They were from 3 weeks ago. Unacceptable.