Symantec Endpoint Protection Manager Database Will Not Start

If Symantec Endpoint Protection Manager v11 embedded database does not start, try the following:

The below article describes how to recreate the embedded database's log file:
http://www.symantec.com/docs/TECH169664

A SEP11 version of the steps is:

Go to "C:\Program Files\Symantec\Symantec Endpoint Protection Manager\db\" and rename sem5.log to sem5.log.old
Click Start, click on Run and Type "CMD" then click OK
In the Command Prompt type: "CD C:\Program Files\Symantec\Symantec Endpoint Protection Manager\ASA\win32\" and press Enter this will change directories to the folder containing dbsrv9.exe.
To force the recreation of sem5.log. Type: "dbsrv9 -f "C:\Program Files\Symantec\Symantec Endpoint Protection Manager\db\sem5.db" and press Enter
Click Start, click on Run and Type "services.msc" then click OK and start the Symantec Embedded Database Service
Start the Symantec Endpoint Protection Manager service.

Don't forget to adjust the paths if your SEPM is on a 64bit OS

References:
http://www.symantec.com/connect/forums/embedded-database-will-not-start