Hi,
We have four node Exchange 2010 environment with a DAG where the active copy is running on one SAN and the inactive is running on another SAN (iSCSI).
The SAN running the inactive database had a hardware problem which caused the performance to go down and replay logs started to build up. We need to reboot the SAN with the inactive databases. The question is if we can do this while exchange is up and running if we suspend all the database copies? We have more than 20 000 mailboxes and do not want to shutdown the whole Exchange environment if possible.