What Are The Exchange 2003 Mail Store Limits?

jssb-bgruett
jssb-bgruett used Ask the Experts™
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My Exchange 2003 server (running under Windows Server 2003 R2) has three different mail stores set up for three different locations.  The first store contains 145 individual mailboxes, the second store contains 217 individual mailboxes, and the third store contains under 20 mailboxes.  The overall sizes of these stores, respectively, are 115GB, 103GB, and 13GB.

The problem I run into is that every few weeks (always on a Sunday night for some reason) the two larger stores go offline.  The event logs usually indicate that Exchange detected a possible problem with the stores, and so it took them offline while it ran whatever corrective actions it needed to run to ensure the data was good.

It seems odd to me that the problem is only taking place with the larger two mail stores.  The larger stores have also been around for about a year, while the smaller store has only been around for a few weeks.

The question I have here is this: are there any limits on either (A) the number of mailboxes that can be contained within a single store before corruption is likely, or (B) the overall size of a store itself before corruption is likely?

My thinking here is that perhaps I need to create numerous new stores and divide up the larger stores into these.  Ie: Site A Store A, Site A store B, Site B Store A, etc...  If there are limits that are known to cause issues if they are exceeded then this would seem to be the best course of action.

Thanks,
Bob
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Awarded 2009
Top Expert 2010

Commented:
The store limits on enterprise edition are 8000GB
What does the event logs say? Cah you check for event 1221? what does it say?

Author

Commented:
Quite a few 1221 events, yes.  Looks like they pop up routinely after online defrags are complete.  They generally just tell me how much free space the various stores have within them.

The most recent entries follow:

============================================================

The database "[NAME REMOVED]\Jz-Ep" has 15183 megabytes of free space after online defragmentation has terminated.

The database "[NAME REMOVED]\Aurora" has 7096 megabytes of free space after online defragmentation has terminated.

The database "[NAME REMOVED]\Public Folders" has 5 megabytes of free space after online defragmentation has terminated.

The database "[NAME REMOVED]\Public Folders" has 5 megabytes of free space after online defragmentation has terminated.

The database "[NAME REMOVED]\First Alert Public Folders" has 0 megabytes of free space after online defragmentation has terminated.

The database "[NAME REMOVED]\Carson" has 1 megabytes of free space after online defragmentation has terminated.

============================================================

Incidentally, that is not a duplicate above regarding the public folders entries.  There are, in fact, two entries in the application event logs that say the same thing.

Thanks,
Bob
Awarded 2009
Top Expert 2010

Commented:
So are there any events that appear when the store is dismounted?
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Author

Commented:
I don't see any explicit events indicating the stores went offline.  Instead, the event entries shifted from a bunch of 1039's (expected when rules aren't applied) to a 1159, a 1022 (expected if the store is dismounted), and then a bunch more 1159's.

Here are the first few:

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Database error 0xfffffd9a occurred in function JTAB_BASE::EcUpdate while accessing the database "[NAME REMOVED]\Aurora".

Logon Failure on database "[NAME REMOVED]\Aurora" - Windows 2000 account JSS\evadmin; mailbox /o=JSS Exchange/ou=First Administrative Group/cn=Recipients/cn=storkl.
Error: -614

Database error 0xfffffd9a occurred in function JTAB_BASE::EcSetColumn while accessing the database "[NAME REMOVED]\Aurora".

Database error 0xfffffd9a occurred in function JTAB_BASE::EcSetColumn while accessing the database "[NAME REMOVED]\Aurora".

Database error 0xfffffd9a occurred in function JTAB_BASE::EcUpdate while accessing the database "[NAME REMOVED]\Aurora".

Database error 0xfffffd9a occurred in function JTAB_BASE::EcUpdate while accessing the database "[NAME REMOVED]\Jz-Ep".

Database error 0xfffffd9a occurred in function JTAB_BASE::EcSetColumn while accessing the database "[NAME REMOVED]\Aurora".

Database error 0xfffffd9a occurred in function JTAB_BASE::EcUpdate while accessing the database "[NAME REMOVED]\Aurora".

Database error 0xfffffd9a occurred in function JTAB_BASE::EcSetColumn while accessing the database "[NAME REMOVED]\Aurora".

===============================================================

Those go on for a while, with the following appearing a few dozen entries farther along:

===============================================================

Database error 0xfffffd9a occurred in function JTAB_BASE::EcPrepareUpdate while accessing the database "[NAME REMOVED]\Aurora".

===============================================================

One thing I forgot to mention is that I do run a Symantec Enterprise Vault server alongside my Exchange server, but I don't think it has anything to do with these problems, as there are no tasks unique to a Sunday night that run against the Exchange server.

Thanks,
Bob
Awarded 2009
Top Expert 2010
Commented:
There is corruption in the stores.

As you have enterprise edition the best thing you can do is create a new store and move mailboxes from the store that's dismounting to the new store.

Author

Commented:
Okay, that's what I was thinking.  Thanks for the help!

-Bob

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