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Exchange has run out of Space

Posted by viralr on April 20, 2011

When you try to mount the database, you may receive the following error message

An internal processing error has occurred. Try restarting the Exchange System Manager or the Microsoft Exchange Information Store service, or both.

ID no: C1041724
Exchange System Manager

When this issue occurs, the following event ID messages may be logged in the Application event log:

Event ID: 9519
Source: MSExchangeIS
Type: Error
Description: Error No space left on disk starting database “First Storage Group\Test” on the Microsoft Exchange Information Store.


Event Type: Error
Event Source: MSExchangeIS
Event Category: System Event
Event ID: 9559
Computer: SERVER
The log disk is full for storage group “First Storage Group”. Attempting to unmount all databases in this storage group.


Event Type: Error
Event Source: MSExchangeIS
Event Category: System Event
Event ID: 9539
Computer: SERVER
The Microsoft Exchange Information Store database First Storage Group\Mailbox Store (DESCARTES) was stopped.


This issue can occur if there is not a sufficient amount of free disk space on the drive that contains the databases that you are trying to mount.


To resolve this issue, free up some disk space on the drive, and then try to mount the database again.


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