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Symantec Backup Exec System Recovery (BESR) supports backing up and restoring Windows 2000 Active Directory Domain Controllers. This document describes best practices and procedures for preparing an Active Directory database to be backed up using BESR, and proper procedures after the backup has been restored to ensure the domain controller is healthy.
Microsoft specifically states that there are two methods for an Active Directory aware application to backup a domain controller:
1. Use the legacy API’s (i.e. Ntbackup)
2. Use the VSS API’s to flag the active directory as a backup copy, causing it to request a new invocation ID upon restoration
We recommend using method one when using Backup Exec System Recovery to backup a Windows 2000 Active Directory Domain Controller, as Windows 2000 is not VSS-aware.
When creating a backup job for the Windows 2000 Active Directory Domain Controller, keep in mind that under Windows 2000, the Active Directory database (and other system state objects) should be backed up by Microsoft’s Ntbackup tool before the backup is created. To do this within a BESR backup job, create a batch file to run Ntbackup at the beginning of the backup operation. For example, the batch file might be called ntbackup.bat. Place the batch file in the command files directory, which by default is “C:\Program Files\Symantec\Backup Exec System Recovery\Agent\CommandFiles”. The batch file should contain the following line:
ntbackup backup systemstate /f c:\systemstate.bkf
At the “Command Files” section of the backup job wizard, select the batch file you created (for example, ntbackup.bat) to execute the Ntbackup process in the “Before data capture” field, which designates the batch file to run before the volume snapshots are taken.
07-09-2007 12:43 AM