You have an exchange server 2016 organization. The organization contains a Mailbox server named EX01.
EX01 contains a mailbox database named DB01.
The volume that contains DB01 fails.
You need to perform a dial-tone recovery of the database.
What should you create first?
a new Recovery Storage Group
a new mailbox database
a mailbox move request
a mailbox restore request
a lagged database copy