My Exchange 2010 database was getting close to the limt so I created a new database and started moving mailboxes to the new bigger database. I still have a few mailboxes on the old database to move but now very close to maxing out the old database.
I have just noticed that the mailboxes that I have moved are showing up in disconnected mailboxes, I had not changed the retention so was at the default x30 days. Can I ask if I just want to give myself a bit of breathing space should I run the command below to just clear out the now moved mailboxes from the old database
clean-mailboxdatabase -identity "Old Mailbox Database"
If so will have then free up some space on the old database on would I also need to defrag it before getting the space back?