I have an exchange server with 60GB mailboxstore \ 2 GB mailboxStore \ 5Gb mailboxstore... I have 3 GB left.
I moved all the mailboxes from to the smaller stores. Now since this is the default one, I do not want to delete it. so I was thinking of offline defrag..... I need to do this while the other two are still online. This is what I plan to do, please let me know if I need something else:
1) dismount the mailboxstore 60GB (which is the one I want to defrag)
2) Copy Priv1.* to another machine with plenty of space and run eseutil /d /p <database name>
3) Once done. I will rename the orig to .old or something and copy the new files which should be very small to the original location.
4) Mount the mailbox store back.
The question is, would the other stores be ok and remain online with no issue. Do I have to do anything with the transaction logs. Would the store mount in this case.