I am running Exchange 2007 on Win 2003 Server R2. As I was running out of drive space, I created a new volume on another disk and moved several mailbox's to the new volume through the GUI. The problem is that my original volume has nove decreased. I suspect the GUI copied the mailbox to the new volume and did not delete. How do I delete this mailbox's from the old Volume to recover the space? What is the correct syntax? Richard

Moving mailboxes out off a mailbox database does not reduce the external size of the database.You'll only get more free space inside the database. In order to reduce the actual database size, you'll have to take the dismount the database and preform an offline defragmentation. You use the Exchange Server Database Utilities (Eseutil.exe) /D switch to defragment and compact it. The defragmentation option makes used storage contiguous, eliminates unused storage, and compacts the database, which reduces the database file size. A successful move mailbox implies a delete of the source mailbox on the old volume in your case. Deleted mailboxes don't free up space is edb http://www.eggheadcafe.com/software/aspnet/33528938/deleted-mailboxes-dont-free-up-space-is-edb.aspx Eseutil /D Defragmentation Mode http://technet.microsoft.com/en-us/library/aa997972(EXCHG.80).aspxMCTS: Messaging | MCSE: S+M

I did this and get an error "Invalid Maximum Cache Size Specification" How do I fix this? Richard

No idea what that error message means. With eseutil in the old days, there were often some weired messages that were solved after a restart and you had disabled antivirus: You should make sure there is no Antivirus file-level scanning on those folders that you use with eseutil. With eseutil /d you should ensure you have at least 110% of the database files size available in free disk space on volume where the defragmented copy of the database file is being created. If you don't have that space redirect the temp file to another volume: eseutil /d <database_path_and_file_name> /t <temp_database_path_and_file_name> How to Run Eseutil /D (Defragmentation) http://technet.microsoft.com/en-us/library/aa998863(EXCHG.80).aspx MCTS: Messaging | MCSE: S+M

Is the db size bigger than 100gb ?

The DB is about 30 GB Richard

30 GB is not much in our days. You'll be much better off if you create a new database and move off all mailboxes to the new database, or if you prefer splitting them into two databases. This will incur downtime only for the user's whose mailboxes are moved at a given time.MCTS: Messaging | MCSE: S+M

That is my intent. I have created a new DB on another drive and am moving all users to the new DB. I would just like to free up some space on the original drive. Any problems if I delete my first db? Richard

Hi Richard, Suggest you dismount the datebase first, cut it to another disk to keep some days to see whether there is any error if possible. After that, remove it. Frank Wang TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Any problems if I delete my first db? I usually check if the Mailbox for the System Attendant is recreated in a new database: Get-MailboxStatistics | Where-Object {$_.DisplayName -eq "Microsoft System Attendant"} | flMCTS: Messaging | MCSE: S+M

Hi Richard, Any updates?Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.