[update November 19, 2008] the links below are obsolete, please refer to this link instead: Protecting and restoring the farm (Office Project Server 2007)
FYI two useful articles for any PS Administrator, were published on TechNet:
- Back up Project Server 2007 by using the Stsadm command-line tool
- Restore Project Server 2007 by using the Stsadm command-line tool
For more information about using the STSADM command-line tool with Office Project Server 2007, see Operations for the Stsadm command-line tool in Microsoft Office Project Server 2007.