Forum Discussion

Copper Contributor

Sep 19, 2018

How to remove mailboxes from on-premise - After Migrating to Office365

After migrated 80% of mailboxes into Office 365 and running Hybrid environment, would like to remove drives/mailboxes from the Exchange on-premise VM . Please see attached screen shot. As you see pe...

migration

NunoAriasSilva

MVP

Sep 19, 2018

Hi Yousuf Khan,

I cannot see the image that you refer, but you can move all mailboxes to one database to another drive. When you do not have any mailboxes on source database, you can delete it and when you do not have databases on that drive letter you can remove it.

Exchange will not delete a database if there is any active information there.

Yousuf Khan

Copper Contributor

Sep 19, 2018

NunoAriasSilva
MVP
Sep 19, 2018
Hi Yousuf Khan,

As I said and suspected without the image, you can move all mailboxes to a single database and after you do not have any data you can delete the database on exchange and after have confirmed that you do not need anything on that drives you can remove them. Is always advised to backup all first.
- Yousuf Khan
  Copper Contributor
  Sep 19, 2018
  Hi Silva, Thank you however how i can move all mailboxes and after deleting the database on exchange.
  
  Can you provide the steps?
  
  Thanks,
  Yousuf
  - NunoAriasSilva
    MVP
    Sep 19, 2018
    Hi Yousuf Khan,
    
    You have many articles on internet.
    
    To move mailboxes you can follow this link https://docs.microsoft.com/en-us/powershell/module/exchange/move-and-migration/new-moverequest?view=exchange-ps
    
    If you are not confortable to do those operations please contact a Microsoft Partner with expertise on Exchange environments to help you. You could have dataloss if you do not do it right.