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How can I
change the store limits in Exchange 2003
SP2?
By
default, the size limit of each database
on a server running Exchange 2000 and
Exchange Server 2003 Standard Edition is
16 GB (this limit is also enforced in
SBS 2000/2003). Exchange Server 2003
Service Pack 2 (SP2) is supposed to
remove this limit and thus allow for
further DB size growth.
After
installing Exchange Server 2003 Service
Pack 2, the default size limit for each
Exchange database is 18 GB, but can
easily be configured to allow for
database size limits of up to 75 GB per
database (for the Standard and SBS 2003
versions), or up to 8000 TB per database
(for the Enterprise version).
By default, Exchange 2003
SP2 logs events when the database has
grown to within 10% of the configured
database size limit (i.e. using 90% of
the allocated limit). This threshold is
configurable and can range from 1% to
100%.
The database size check
happens at 5am, every 24 hours by
default. This time can be changed
through the registry. The first database
size check will not take the database
offline if the size limit has been
exceeded, but an error event (ID 9689)
will be logged in the Application event
log (i.e. it has reached the 18 GB
limit, or any other limit you have
manually set).
On the second check (24
hours later) the error event will be
logged in the Application event log and
the database will be taken offline. An
administrator can then mount the
database but he or she will have 24
hours fix this issue before the database
goes offline again.
Note: Exchange
2000 Standard Edition and SBS 2000 do
not have this feature and continue to
have the 16 GB limit enforced.
To
configure the database size limit for a
database:
-
On the
computer running Exchange Server,
start Regedit.exe.
-
Open
one of the following registry keys:
-
To
configure the database size limit on
a public store, use the following
registry key:
Note: In some
cases you might find more than one "Private-Mailbox
Store GUID" and "Public-Public
Store GUID" values in the above
registry path. These values can be
determined by looking at the
objectGUID attribute of each store. |
