Backup of protected computer system state – Dell PowerVault DP600 User Manual

Page 121

121

DPM runs the pre-backup and post-backup scripts by using the local system account. As a best

practice, you should ensure that the scripts have Read and Execute permissions for the

administrator and local system accounts only. This level of permissions helps to prevent

unauthorized users from modifying the scripts.

On each protected computer, you should back up the scripting file, ScriptingConfig.xml, at

\Program Files\Microsoft DPM\DPM\Scripting, and all pre-backup and post-backup scripts.

Backup of Protected Computer System State

System state is a collection of system-specific data maintained by the operating system that must

be backed up as a unit. It is not a backup of the entire system. The backup of a computer's

system state can be used when you need to return the computer to a known state, such as after

an installation that puts the computer in an undesirable state.

DPM can protect the system state for any computer on which a DPM protection agent can be

installed, except computers running Windows Vista or Windows Server 2008.

The system state of a protected computer can be added to a protection group. DPM leverages

the Windows Backup utility on the protected computer to back up the system state to a backup

(.bkf) file, which is saved to the DPM medium you specify for that protection group (disk, tape, or

both).

Because system state does not change frequently, consider placing system state in protection

groups separate from file and application data so that you can specify the most efficient

protection schedule for each data source.

Member Server and Desktop System State

When DPM backs up the system state of a member server or desktop, the following components

are protected:

• The boot files
• The COM+ class registration database
• The registry

Domain Controller System State

When DPM backs up the system state of a domain controller, the following components are

protected:

• Active Directory (NTDS)
• The boot files
• The COM+ class registration database
• The registry
• The system volume (SYSVOL)