How to Change default Database Size Limit in Exchange Server 2007

How to Change default Database Size Limit in Exchange Server 2007

Exchange Server 2007 Standard edition default database size limit is 50GB, whereas Exchange Server 2007 Enterprise edition has no default database limit. The Exchange store occasionally checks for any database limit and dismount the database when that limit is reached. We can modify the database limit by editing a value in the registry.

Any change in the default limit should always be followed by the test operation of backup and restore plan.

1.  Open the registry by running regedit command.

2. Locate the following registry subkey:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\<SERVER NAME>\Private-<database GUID>

3.  If the Database Size Limit in GB DWORD exists for the subkey, change its value to the desired size in gigabytes.

4. If the Database Size Limit in GB DWORD does not exist for the subkey, create a new DWORD with that name, and then set its value to the desired size in gigabytes.

You can get the GUID of a database by running the following command in the PowerShell:-

Get-MailboxDatabase -Identity "<server name>\<storage group name>\<database name>" | Format-Table Name, GUID