Exchange 2007 Dismounting intermitently


We currently have an odd issue where one of our datastores is being dismounted intermittently. It seems so that we have a maintenance task that happens which I believe may trigger the datastore to get dismounted. There is nothing in the logs to indicate this but I cannot think of any other possible reason to why this is happening.

The odd thing is, it doe not happen every night.

Any help will be appreciated.


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introluxAuthor Commented:
Found the following in the logs:

Exchange store 'First Storage Group\Database 1': The logical size of this database (the logical size equals the physical size of the .edb file minus the logical free space) is 353 GB. This database size has exceeded the size limit of 350 GB.

This database will be dismounted immediately.

I have increased the size from 350 to 500. Seems like that was the problem.

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Senthil KumarCommented:

Give us more details like the data store location (SAN or local drive) and any error message appears in windows system log.
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