How could this be? It is not deleted mailboxes. I ran the ExchangeDatabaseGrowthReporting script and it comes back as "Actual Overhead"

What could this be?

Retained deleted items?  Do you use legal or in-place holds?

How can I query for those item sizes with Powershell? I will post results.

• Edited by WREED_CISCO 8 hours 37 minutes ago

Get-MailboxDatabase -Status will return two properties, DatabaseSize and AvailableNewMailboxSpace.  Get-MailboxStatistics will give you TotalDeletedItemSize among other statistics.

If you think the database is vastly oversize, you can move all the mailboxes to another database and then delete the first one.

This is happening alot. We have 200 databases. This is occurring in at least 10 of them right now.

We are trying to determine the root cause. We are already moving to a new DB. But would like to use this sample DB to find out why this is happening.

We are on SP3 Update Rollup 8. happening on multiple database servers.

DatabaseSize                                 : 634.1 GB (680,900,755,456 bytes)
AvailableNewMailboxSpace                     : 18.67 GB (20,049,199,104 bytes)

That says that nearly all the space is in use.

Do you see the picture on the top of the thread? There is only about 60GB of user mailbox data on this DB, yet the EDB is 600gb.

Not according to your previous post.  All but 18.67GB is in use.

Ed, Please look at the image of the CSV in the first post.

So if all 600GB is in use, how do I tell what is using it?

Get-Mailbox -ResultSize Unlimited | Get-MailboxStatistics | FL

This will give you the information you seek.  You are welcome to narrow down the returned information to the parts that are relevant.

Again, you should examine your deleted item retention policy, and your use of legal and in-place

I queried for litigation hold mailboxes, none on this MBX server.

I will run your command now and post results.

How do I pipe just the info I need into a CSV? It spit out tons of lines.

Pare it down to the data you want and pipe it to Export-CSV.

I am just looking for deleted item size right? Tell me exactly what to look for.

Sorry, I can't hold your hand on this one.  All I can do is give you some guidance on where to look.  These statistics aren't scientific and the numbers don't always add up exactly.

You have basically guided me to what I already know. Exchange shows about 60GB of User data, yet the EDB is 600gb.

Who can give me some more advanced troubleshooting steps?

How do I examine the EDB for where all the space is?

Sorry that I didn't tell you anything you didn't already know.  Had you posted what you knew in more detail along with a more specific question, we could have avoided this whole thread.

How can I query for those item sizes with Powershell? I will post results.

• Edited by WREED_CISCO Tuesday, August 25, 2015 10:51 PM

Ed is giving you proper info.  You only have 18GB of available disk space within the physical disk space.  If your MB space is only 60GB you can either transfer the MB to a new DB to resolve the issue or open the DB with our DigiScope product with a DEMO license and see where all the data is&n

I will try your trail product today? What are the limitations of trial mode?

DEMO License benefits & capabilities can be found here http://www.lucid8.com/download/documentation/DSWebHelp/DigiScopeHelp.htm#LIC/DEMO_LICENSE.htm