I have no idea what the 60GB threshold that you're talking about is, but I
do know what the deal is with the mailbox sizes. There's an issue where the
value returned for mailboxes which are greater than 4GB is 0, but Exchange
still knows their 'true' size and sorts them accordingly in the display.

Several of our customers have similarly large mailboxes.

-----Original Message-----
From: Arnold, Paul
To: Exchange Discussions
Sent: 2/1/2002 8:07 AM
Subject: Strange behavior

Hi All.

I have a strange problem. My exchange server is running pretty slow.
We are running Exchange 5.5, sp4. The priv.mdb is 58 GB, and has slowly
climbed to that size, but performance SUDDENLY went to a crawl this
morning.
There are no strange (or error) events in the event log, SMTP
connections
are still working in/out and CPU & memory usage are generally low.
Traffic on the switch is low as well.

(BTW: I know there is a 60GB threshold that we are dangerously close to,
but
a new 2000 clustered Exchange server will be in place within 6 weeks.)

I don't expect a list thread of "did you check.." (but I'd welcome it)
but
here is something strange:
When I look at the list of mailboxes in Exch Admin on the server and
sort by
size, 4 mailboxes (each is quite large) get sorted above the empty
mailboxes.
So my sort looks like this:
Mailbox Total K Total items
User1           2,227,430       21,129
User2           2,535,232       18,538
User3           3,344,777       32,785
User4           3,444,626       57,871
User5           0               0
User6           0               0
User7           1               1
...etc

The bottom of the list looks normal enough...a few mailboxes some even
near
the same size.

Has anyone experienced similar phenomena? I think I have noticed this in
the
past, and it may not be related to the performance, but it was bugging
me.

My suggestion was to clean up those mailboxes, export the content, then
blow
them away and recreate them

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