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Exchange 2003 store unmounts everynight

We have exchange 2003 running on SBS 2003. For the past month, when we come in the morning the Exchange mailbox store is unmounted. When we mount it back, it mounts without any issues. I looked at event logs and could not find much. This happens for most days of the weeks and may skip a day or two per week, but it has created real  problem. I had run isinteg on it about a month a go or so, but it did not help.
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netcomp
Asked:
netcomp
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2 Solutions
 
AkhaterCommented:
This is probably due to the fact that your database is passed the limit of 16 GB, if you have Sp2 installed you can change a registry key to extand the limit to 75 GB

http://support.microsoft.com/kb/912375
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Glen KnightCommented:
This is probably due to your information store reaching it's limit.
In Exchange 2003 prior to Service Pack 2 this was limited to 16 GB
 
Check the application log on your Exchange Server for the following:
 
Event Type: Error
Event Source: MSExchangeIS
Event Category: General
Event ID: 1112
Description: The database "Mailbox Store (Server Name)" has reached the maximum allowed size. Attempting to unmount the database.
 
Event Type: Warning
Event Source: ESE
Event Category: Space Management
Event ID: 445
Description: Information Store (3160) The database D:\Program Files\Exchsrvr\MDBDATA\priv1.edb has reached its maximum size of 16383 MB. If the database cannot be restarted, an offline defragmentation may be performed to reduce its size.
 
If this is the case then Services Pack 2 can be applied for Exchange Server 2003 from here: http://www.microsoft.com/DOWNLOADS/details.aspx?familyid=535BEF85-3096-45F8-AA43-60F1F58B3C40&displaylang=en
If you are running Small Business Server 2003 then you need to ensure that you have SP2 for Exchange along with SP2 for Windows and SP1 for SBS: http://www.microsoft.com/windowsserver2003/sbs/downloads/sp1/default.mspx
 
Once you are running SP2 for Exchange you can increase the size of your Information Store Limit but following this article: http://support.microsoft.com/kb/912375 upto a maximum of 75GB
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Satya PathakLead Technical ConsultantCommented:
Make sure problem causing with backup first verify you’re backup if you are using any third party backup.
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Vipin_905Commented:
Type REGEDIT in cmd from Start>Run>................HKEY_LOCAL_MACHINE\SYSTEM\CURRENTCONTROLSET\SERVICES\MSEXCHANGEIS\<ExchangeServer Name>\Private-<Long hexadecimal String>
After that go on to Edit Menu , Go to New in that clich to DWORD Value
Type Temporary DB Size Limit Extension -Enter
Trype 1 in Value Data Box Click on to Decimal in Base Box
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Glen KnightCommented:
Vipin_905 > that registry key is only valid for Exchange 2003 pre Service Pack 2.
Please see here: http://support.microsoft.com/kb/828070

there is no reason why you should not be using Exchange 2003 Service pack 2
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netcompAuthor Commented:
Great,
I just found an event log for store reaching its limit. I think I might have done exchange service pack2 and may only need to do the registry edit. How can I check to see if exchange service pack2 was installed. ?
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Glen KnightCommented:
In Exchange System Znanager navigate to Administrative Groups > First Administrative Group > Server and then in the window on the right you will see your server.

It will tell you here what version the server is.
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AkhaterCommented:
an image for you
image0021125577652169.jpg
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netcompAuthor Commented:
I made the changes today. I will wait to see if it comes back the next few days, but it looks likes you were right from start.
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AkhaterCommented:
great then !

You followed the instructions in the link I previously sent you ?
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netcompAuthor Commented:
Thank you all for your help. It sure had to do with the database size and the fact that service pack 2 was not installed.
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