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What should I backup for our AD 2008 R2 domain

I would like to know the best way to backup AD and our DC's. We currently have 4 DC's running AD 2008 R2. I am backing up the system state right now but I wanted to know if anything else needed to be backed up. Also, should I perform these backups on all 4 DC's?
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Kevin Litman
Asked:
Kevin Litman
2 Solutions
 
tussharawaghanCommented:
Only one DC backup is required. System State is enough for just AD backup. If you want to restore the DC then you also need to backup your OS drive.
Also test restores to a test environment to confirm its working.
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Kevin LitmanNetwork AdministratorAuthor Commented:
If I do not want to restore the DC from backup I could rebuild the DC and then restore AD from the backup correct?
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Darius GhassemCommented:
The best option is to have a second DC still run backups but if one of your DCs fail then you can rebuild from the working DC by just promoting the DC again
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