How do you clear the transaction logs

Posted on 2007-12-03
Last Modified: 2010-04-21
We have an Exchange 2003 Server and the transaction logs disk is 95% full.  Is there a way that I can clear the transaction logs before this gets full?  Our backup software is not installed and in order to do that we need to reboot.  So,  I would like to know if there is a way for me to clears those logs files without having to brng Exchange down.  
Question by:gomezc12
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Accepted Solution

lcit earned 500 total points
ID: 20397675
The transaction logs should be purged by a full backup of exchange.  If you have the space somewhere on your network, you can use "windows backup" to backup the exchange databases.  The version on your exchange server is excahange aware.  

Here's a link that you may find useful:
LVL 26

Expert Comment

ID: 20397680
A Windows Backup will clear the logs when it completes the full backup of Exchange as well. Nothing to install.

Author Comment

ID: 20397948
I tried doing a backup and it could  not create the shadow copy to complete the backup.  Is there a way to clear the log files without a backup?
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LVL 26

Expert Comment

ID: 20398388
A backup is the preferred method.

Expert Comment

ID: 20398802
You could move them to another location:

I believe you can move the logs without dismounting the store.  

Author Closing Comment

ID: 31412404
The only issue I ran into was that as noted you must have enough space on your network to run the Windows Backup, we did not.  As it turned out we ended up rebooting our Exchange Server in order to complete the install of our backup software and ran a backup to tape and that of course cleared the log files as well.  Thank You so much for all of your help!  I really appreciate it!

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