You experience the following symptoms on a computer that is running Microsoft Exchange Server 2007:
||If you try to mount a mailbox database or if you try to mount a public folder database, you experience the following symptoms:
||You receive an error message that resembles the following:
Failed to mount database 'Mailbox Database'
Exchange is unable to mount the database that you specified. Specified database: d1cdba46-6f79-46f2-ba14-3ae2fa8aad43; Error code: MapiExceptionCallFailed: Unable to mount database. (hr=0x80004005,ec=-2147467259).
||The following events are logged in the Application log:
Event ID 9519
Event Type: Error
Event Source: MSExchangeIS
Event Category: General
Event ID: 9519
Description: Error 0x80004005 starting database "First Storage Group\Mailbox Database" on the Microsoft Exchange Information Store.