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Exchange 2010 Backup to Delete Log Files

rhcellxion
rhcellxion asked
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Last Modified: 2012-06-12
I recently installed exchange 2010 and need to start backing up the database....  when using windows backup service, does it stop the information store service in order to backup, or will mail continue to flow?  also, I have the database on a seperate drive than the OS and exchange... if i just back up the database will it still delete the logs??

thanks
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No, it does not cause an interruption in service. Windows Server Backup uses VSS technology. It will not delete any files during this process.

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Commented:
Hmmm. Then how do I delete the log files.  Most of what I've read states that if you run a backup the logs will be deleted.
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Commented:
If you use the native Windows backup on an Exchange server and your backup source includes all volumes then it will flush the logs automatically as part of the backup process.

The Native windows backup use VSS to create a "snapshot" and backup up the snapshot. During creation of the VSS snapshot, writes are quiesced so there is a small interruption, but this is usually a small fraction of a second.  

You do not need to enable circular logging and unless the server only has the transport role this would be against best practice.
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Commented:
On Windows Server 2003, when you installed the Exchange Management Tools, you could backup  the Exchange Databases, on Windows Server 2008 and 2008r2 it is only a "complete disk" backup, you are not able to select just the Exchange databases. However it will backup Exchange and flush the logs.

http://technet.microsoft.com/en-us/library/dd876854.aspx

I would advise against using circular logging.
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