We have a physical Exchange server that's part of a DAG and it's running critically short of drive space. It is currently hosting the passive copy of a mailbox database.
We've attached an iSCSI LUN to it with sufficient space and my plan is to suspend the database copy, manually move the database files to this new drive on the LUN, rename physical drive to a different drive letter and give the original drive letter to new drive. In theory when we resume the database copy it'll see the database in the 'same' location as before and reseed.
I've done something similar with single instance databases and PF databases where I've dismounted and copied them but am wary that I won't be 'dismounting' the passive database copy so it might not work.
We are trying to minimise downtime so please let me know if my plan above will work?