Forum Discussion

Copper Contributor

Apr 19, 2023

Exchange 2019 switch to empty DB

Good morning, I have my exchange server 2019 on win2019 server. The user's mailbox database, .edb file is too big (more than 30GB). I need to archive this database and start with a new empty database...

Exchange Server

Andres-Bohren

Iron Contributor

Apr 19, 2023

Hi MaxMDF3

Check your "Whitespace". Remember Exchange does not release available Mailbox Space. You have to move to a new Mailbox in Order to end up with a smaller Database

Get-MailboxDatabase -Status | Select-Object Name, DatabaseSize, AvailableNewMailboxSpace | Format-Table -AutoSize

Create a new Mailbox Database and use the New-MoveRequest commandlet to move the Mailboxes to a new Mailbox Database.

Get-Mailbox -Database OldDatabase

New-MoveRequest -Identity <Identity> -TargetDatabase "NewDB"

Regards

Andres