### List  move requests on the server ###
Get-MoveRequest

### Remove all move requests ###
Get-MoveRequest |Remove-MoveRequest

### Stop Default database from mailbox provisioning ###
Get-MailboxDatabase mailbox* | Set-MailboxDatabase -IsExcludedFromProvisioning $true

### Create New Move Request ###
New-MoveRequest -Identity pshivkumar -TargetDatabase DB01 -WhatIf
New-MoveRequest -Identity pshivkumar -TargetDatabase DB01 -WhatIf -Verbose

### Create New Move Request for all the mailboxes ###
Get-Mailbox -ResultSize unlimited -RecipientTypeDetails Usermailbox,sharedmailbox | New-MoveRequest

### List all the move request which are in "InProgress" ###
Get-MoveRequest |?{$_.status -like "inprogress"} | Get-MoveRequestStatistics

### To see the count of mailboxes on each databases ###
Get-Mailbox -Database DB01
Get-Mailbox -Database DB01 | measure

### To see only the count of mailboxes on each databases ###
(Get-Mailbox -Database DB01 | measure).count
(Get-Mailbox -Database DB02 | measure).count
(Get-Mailbox -Database DB03 | measure).count
(Get-Mailbox -Database DB04 | measure).count