I have been working with Microsoft Exchange Server since v5.0. During all those years and versions, I have seen mailboxes of all sizes. I have seen users with a couple of 4GB pst files. The largest mailbox I have ever seen on a system was around 8GB, and I used to think it was huge... until recently. I was performing a "site assessment" for a client and was collecting information about their Exchange Server 2003 environment. Since the disk space was a non-issue for the client, there were no quotas defined at the mailbox size level. I opened up the Mailboxes view in ESM and sorted the mailboxes by size to see the top 10 mailboxes and I got perplexed. I looked at the screen again, and asked the IT Manager if I was seeing right. Here's what I saw:
(The names of the users have been blurred to protect the innocent.)
So now the largest single mailbox I have ever seen is 27GB. How about you? What is the largest mailbox size you have ever witnessed? Please share your experiences and thoughts using the "Comments" link below.
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3 comments:
I manage Exchange 2007 system for our company.
We have only about 100 users but they are all heavy users. Our largest mailbox is currently 60+GB with a 47GB in closa second.
Down the tree we have about 12 boxes between 20 and 30GB.
When I joined the company they were on a single mailstore on Exchange 2003!
It was 250GB!! The first week I was here it crashed and took 5 days to repair it so it would mount! Since upgrading to 2007 shortly therafter and spreading the users over 25 storage groups with a total DB size of approx 750GB we have had zero issues. 2007 is a godsend to anyone facing these kinds of challenges.
Our average mailbox size is about 10GB. The largest being 52GB. Many are in the 30's and 40's. I think this is how law firms are...
not to beat a dead horse on this topic, but we just found a mailbox in a company we bought that was 355 GB. It only has 308K items though (which isn't even close to a few others on that server).
I'm pretty sure that's the world record.
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