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Finding cause of Exchange database dismount

Posted by viralr on October 5, 2011

Finding cause of Exchange database dismount :-

Question :

Running Exchange 2007 SP2. This afternoon, noticed that one of our stores was dismounted….not sure when it happened, and becuase it’s a Sunday no one called our Helpdesk luckily. Could have been down since Friday PM.

I’d like to find out the cause, but our Event Logs are full of stuff – does anyone know what Event ID I’d be looking for etc? Any other way to find out when it was dismounted? I thought about checking the transaction logs but they have all been purged after the backup.

Please check the event viewer thoroughly for the following evnets

Event Id – 9539 & 9175 will be generated during store dismount ,

Event Id 482 will generate in case if the exchange store is dismounted due to low disk space.

Event Id 9688,89,90 will generate in case your database has exceeds the limit ,

Also which software are using for Exchange Backup ,do you have any scheduled task to dismout the store ?


One Response to “Finding cause of Exchange database dismount”

  1. IT Chris said

    Thank you for putting the event IDs on here, I’ve ben trying to pin-point why our database has been dismounting for two weeks. I just found that it is the size of the database.

    Thank you so much.

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