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Exchange SP2 18GB Limit

Small Business Server


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  #1  
Old 24-06-2008
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Join Date: Jun 2008
Location: Nairobi, Kenya
Posts: 13
Exchange SP2 18GB Limit

Greetings all,
Thank you for your continued support.
Larry,
I came across this tweak to modify win2k3 SBS to overcome the 18GB limit.

Modify
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeIS\Server name\Private-Mailbox Store GUID
and
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeIS\Server name\Public-Public Store GUID

The current total size of the .edb and .stm databases is 35GB. I adjusted this to 45GB using the tweak above but still when the database check is done, it is usually dismounted. Everyday at around 10.00am I have to restart MS Exchange related services. Users complain that their outlook is disconnected and cant send/receive.

Kindly advise.

tnai9

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  #2  
Old 24-06-2008
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Join Date: Jul 2004
Posts: 135
RE: Exchange SP2 18GB Limit

Well before I could suggest you something I would like to know what is the Size shown in Event Viewer. Check this after restarting the Exchange Information Store Service.
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  #3  
Old 25-06-2008
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Join Date: Jun 2008
Location: Nairobi, Kenya
Posts: 13
The behavior is so erratic. Kindly find below event viewer reports on the same

Event Type: Warning
Event Source: MSExchangeIS Mailbox Store
Event Category: General
Event ID: 9685
Date: 25/Jun/2008
Time: 5:28:06 PM
User: N/A
Computer: ANDYSVR
Description:
Exchange store 'First Storage Group\Mailbox Store (ANDYSVR)': The current physical size of this database (the .edb file and the .stm file) is 39 GB. This database has exceeded the size limit of 18 GB. However, the logical free space in this database has not yet been evaluated. Therefore, it is possible that this database contains enough free space to bring its logical size below the maximum size limit.

If the logical database size exceeds the maximum size limit, it will be dismounted on a regular basis.

For more information, click http://www.microsoft.com/contentredirect.asp.


Event Type: Information
Event Source: MSExchangeIS Mailbox Store
Event Category: General
Event ID: 1216
Date: 25/Jun/2008
Time: 5:28:06 PM
User: N/A
Computer: ANDYSVR
Description:
The Exchange store 'First Storage Group\Mailbox Store (ANDYSVR)' is limited to 18 GB. The current physical size of this database (the .edb file and the .stm file) is 39 GB. If the physical size of this database minus its logical free space exceeds the limit of 18 GB, the database will be dismounted on a regular basis.

For more information, click http://www.microsoft.com/contentredirect.asp.

Event Type: Information
Event Source: MSExchangeIS Public Store
Event Category: General
Event ID: 1216
Date: 25/Jun/2008
Time: 5:28:06 PM
User: N/A
Computer: ANDYSVR
Description:
The Exchange store 'First Storage Group\Public Folder Store (ANDYSVR)' is limited to 18 GB. The current physical size of this database (the .edb file and the .stm file) is 1 GB. If the physical size of this database minus its logical free space exceeds the limit of 18 GB, the database will be dismounted on a regular basis.

For more information, click http://www.microsoft.com/contentredirect.asp.

Especially the last one is so erroneous. It reported thia on restarting the services.
Thank you.


[quote=Frank McCallister;3821213]When you restart the Exchange Information Store Service and check the Event
Viewer what does it report the size as?

--
Frank McCallister [SBS-MVP]
COMPUMAC
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  #4  
Old 25-06-2008
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Join Date: Jan 2006
Posts: 4,215
Re: Exchange SP2 18GB Limit

Actually the stores growing automatically as necessary to accommodate new data. When you delete data, the stores don't shrink, they then contain "slack" space in place of the deleted data. Hence you need to have 20 GB store, and delete 2 GB of data. By doing this there will be 20 GB store containing 18 GB of data. That's why the entries you posted refer to physical and logical size.
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  #5  
Old 10-07-2008
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Join Date: Jun 2008
Location: Nairobi, Kenya
Posts: 13
18GB Database size for MS Exchange

Thank you so much all you gr8 guys at techarena. There was an unbelievably small issue that was making those settings not to work. The previous admin had created the dword it but instead of 'Database size limit in GB' he had typed 'database size limits in GB'.
That caused all the trouble. I changed it and its now working fine.

Thank you pals and all the MVPs
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