All outlook users getting “The Microsoft Exchange Administrator has made a change...” error, temp rsolved by restarting Exch Info Store service

Jay_Ratansi
Jay_Ratansi used Ask the Experts™
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All Outlook users are intermittently (twice this week) receive “The Microsoft Exchange Administrator has made a change that requires you quit and restart Outlook.” error. OWA access stops working.

Restarting Exchange Information Store service removes the error for the time being.

I've read several posts in EE regarding this & believe that this is related to the size of the exchange EDB file.
server: SBS2008/Exchange2007
size of EDB file : 264,342,672 KB

Not absolutely sure but this seems to occur around 6am when an incremental backup is taken.

I'm in the process of removing some old mailboxes so that edb doesn't expand further.

what do you suggest to confirm that the size issue is indeed the problem?

what steps to resolve the problem?

thanks
Jay
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Scott CSenior Engineer

Commented:
I don't think it's the size of the database, you most like have some corruption or inconsistencies.

You can run ISINTEG and ESEUTIL to try to correct any problems.

https://technet.microsoft.com/en-us/library/aa996436(v=exchg.65).aspx

These would have to be done offline and you'd need 2.5 times the size of your DB available to run these.

Also in a best case scenario you will process about 10 gig an hour.

When I was with MS as a Tier 3 Exchange Engineer I saw larger databases than that and they ran with no issues.
Problem was caused by Exchange database exceeding the hardcoded 250GB limit. see FAQ below. I amended the registry to increase the limit.

Windows Small Business Server 2008 Technical FAQ
http://technet.microsoft.com/en-us/sbs/cc817589

Essentially there are no limits to the Exchange Server 2007 Standard Edition database size. By default, Exchange 2007 SP1 sets a limit of 250 GB that can be changed if needed. Also note that you can have up to 5 storage groups with a maximum of 1 database per group, meaning that you can have up to 5 databases. In SBS 2008 we use 2 storage groups (2 databases) by default. Realistically, database performance is dependent on number of processors; amount of RAM, speed of your I/O backplane and storage array configuration, so proper mailbox management policies should be in place to prevent creating back-pressure situations that would affect the server's performance.

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Commented:
The one response received did not help to resolve the question. I researched the matter & resolved.

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