Exchange Database Size

I am trying to make some room on a server drive, I have connected a sinology ISCSI box and all new mail accounts go to that, I've also moved some existing users to this drive which should have freeded up about 15GB of disk space but the size of the database hasn't changed. I have left it for a couple of weeks in case it returned the space after it had done some house keeping.

Is there something else I should be doing?

Many thanks
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Will SzymkowskiSenior Solution ArchitectCommented:
15GB of disk space but the size of the database hasn't changed.
This is by design. Exchange databases will continue to grow so even after moving the mailboxes to another database or server the database actual size (showen in windows) does not change.

There is whitespace that is reclaimed and Exchange will use this space before the disk size increases however the actual size of the database will not decrease. Even if you were to move ALL mailboxes out of a database the size would remain the same.

This is by design.

PHBSupportAuthor Commented:
Thanks Will

This works for us as the drive is only used for mailbox's so moving a few out will effectively free up space for the ones left.

Last two things:

How long is default retention period and can it be changed?

Can you view how much white space there is?

Many thanks
Will SzymkowskiSenior Solution ArchitectCommented:
Retension of Mailbox items is default of 14 days. Mailbox retenstion is 30 days they can be adjusted.

To get the mailbox whitespace use

get-mailboxdatabase -server <database> | fl 

Open in new window

You will then see Whitespace.


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.