Discovery Mailbox
Search Discovery Mailbox
Get-Mailbox -RecipientTypeDetails DiscoveryMailbox
Move Anahother Database Discovery Mailbox
Get-Mailbox -RecipientTypeDetails DiscoveryMailbox | New-MoveRequest -TargetDatabase db01
Arbitration Mailbox
Search Arbitration Mailbox
Get-Mailbox –Arbitration
Move Another Database Arbitration Mailbox
Get-Mailbox -Arbitration | New-MoveRequest -TargetDatabase db01