Exchange 2000 mailbox storage size not reported right?

Posted on 2006-05-23
Last Modified: 2010-03-06
In Exchange manager I can see the total of all the mailboxes below the First Storage Group - Mailbox Store - is approx 5G

But the actual files don't match this at all
priv1.edb   12.9G
priv1.stm   0.6G
pub1.edb   11M
pub1.edb   10M

In the event log
The database "First Storage Group\Public Folder Store (TRANSERVSBS1)" has 1 megabytes of free space after online defragmentation has terminated.
The database "First Storage Group\Mailbox Store (TRANSERVSBS1)" has 3361 megabytes of free space after online defragmentation has terminated.

A couple of mailbox users are over 1G.

This is all making no sense to me - can some expert please help? Is it true that mailboxes are limited to 2G each and 16G total for this server? Is it all going to turn black any second?
Question by:mbhh
    LVL 35

    Accepted Solution

    Exchange 2000 standard edition has a limit of 16 GB
    Mailbox size is not limited to 2GB
    .pst created with outlook other than outlook 2003 have a limit of 2GB

    the event log shows that the mailbox store has 3Gb of space that can be reclaimed with offline defrag

    Author Comment

    Thanks .. my panic is subsiding .. Do you think it is worth doing this defrag? How does one do an offline defrag? Are there any risks? Should it be done routinely? Why doesn't Exchange server do it by itself?
    LVL 35

    Expert Comment

    Exchange does not do offline defrag on it own. it does online maintenance on its online maintenance it scans the database and marks the items that have been deleted for deletion. this is called white space which can be reclaimed after offline defrag.

    to do offline defrag the stores need to be dismounted, so that is a downtime. offline defrag should not be run that often but it depends on the amount of free space that can be claimed. in your case it comes to around 3GB. so the database size would come down to 9GB.

    You can check the following articles regarding offline defrag

    How to defragment Exchange databases

    XADM: How to Recover Hard Disk Space from Exchange Server Databases

    XADM: Exchange 2000 Server Eseutil Command Line Switches

    How to run Eseutil on a computer without Exchange Server

    Determining the True Amount of Space in an Exchange Database

    Author Comment

    Why does Exchange manager report the total of all the mailboxes is only 5G?
    LVL 35

    Expert Comment

    The following article might tell something

    Author Comment

    Very comprehensive, thank you rakesh.

    cheers mark

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