How do i clear out the log files in exchange 2007?in EX2003 you can select to delete log files older than 30 days but i cant find anything like that in 2007. Im guessing its in the command shell somewhere...

its a Exchange Management Shell cmdlet are you talking about message tracking logfiles? its default to 30 days. run 'Get-TransportServer | fl' and look for 'MessageTracking....' Change setting with 'Set-TransportServer -MessageTrackingLogMaxAge x' where x is the number of days you want.

no not the message tracking logs i think they are called storage group logs... the files are like this E00000000A0.logE0000000A00.logE0000000A0A.logif you expand server config, click mailbox, the right click first storage group, and point to move storage group path, that shows you the location of the logs... these are the ones i wish to clear as they are getting to be quite large in size.

Those logs are called transaction log files. Each Storage group has its own logs and they are used by the database engine, Dont fiddle with them manually They should be deleted by Exchangewhen an Exchangebackup is completed. a lot of information about database functionality is in http://technet.microsoft.com/en-us/library/aa998848.aspxand subsections

ah i see.so these should be deleted automaticlly after a full backup?they probably havent been deleted yet since we are not yet backing up the EX2007 server. (still testing)

You can use NTBackup to backup Exchange Information Store

Just make sure thatyou are selecting the Exchange Server backup rather than trying to back up the files directly via the file system. These are found under the Microsoft Exchange Server selection in the Windows Backup utility.

Ok for Windows 2003 Server but if I have Exchange 2007 on Windows 2008, I cannot use NtBackup. Can clear the transaction log with Windows 2008. Thanks for your help

You have to use another backup software to make Exchange backups and it will also purge the transaction log the same way ntbackup does on Windows 2003. If you're in a hurry you can use DPM, I would preffer that, otherwise you must wait a while forMicrosoft to create something for Windows 2008, here is more info http://msexchangeteam.com/archive/2008/03/05/448338.aspx and here http://msexchangeteam.com/archive/2008/06/18/449031.aspx

If Exchange 2007 is on Windows 2008, then you need install the feature called "Windows Backup". Open Server Manger | Features | Add feature | select Windows Backup Once it is installed, you can run Backup and take Exchange 2007 backup which can purges all transaction logs.

In addition to the backup option (which is not the best for test environments). You could enable circular logging. This will ensure that Exchange overwrites the same set of transaction logs, reducing the drive space requirements. However, please keep in mindthis should not be used in production. Here is a technet on how to actually enable circular logging on Exchange 2007: http://technet.microsoft.com/en-us/library/bb331968(EXCHG.80).aspx -matt

Here is a really good thread on backing up E2K7 SP1 running on W2K8. http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=2934600&SiteID=17