WinSBS2003 Exchange maintenance happening during business hours

Hello Experts! I have an SBS 2003 box that I support. I've noticed a number of 9539 events (The Microsoft Exchange Information Store database "First Storage Group\Mailbox Store (CENTRAL)" was stopped.) in the application log for this server. These used to happen at 12:25am, but recently started happening at 8:25am.  

In reviewing other SBS2003 boxes that I manage along with regular Exchange 2003, I see that these other boxes rarely see this event.

On the troubled box, it's followed by the rest of the Exchange services shutting down. It takes about two minutes to shut everything down, then it seems to sit there for about 4-5 minutes. After that, event 1000 kicks off (Microsoft Exchange System Attendant is starting. Microsoft Exchange Server System Attendant, service startup complete, version 6.5 (build 7638.1). ) and the remaining Exchange services then all start.

Any ideas?
xydenAsked:
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MesthaConnect With a Mentor Commented:
The store shouldn't be stopping at all, even for maintenance, so something is wrong.
Is there something on the system trying to take backups? The store shouldn't stop on its own unless it is crashing or being told to. It is designed to run 24/7. Stopping the store repeatedly can actually damage the database.

I would be looking for what is stopping the store, so look in the scheduler to start with.

Simon.
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xydenAuthor Commented:
Ok, good. That's what I thought. Crud, now to figure out why it's shutting down on a regular basis.
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xydenAuthor Commented:
Ok, now that I know it should not be shutting down regularly, I'm going to post a new question. Thanks!
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