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NetVault Plug-in for FileSystem 12.3 - User Guide

Supported restore methods for SYSVOL Directory

SYSVOL (System Volume) is a collection of folders and reparse points in the file systems that exist on each Domain Controller in a Domain. SYSVOL provides a standard location to store important elements of Group Policy objects (GPOs) and scripts so that the File Replication Service (FRS) can distribute them to other Domain Controllers within that Domain. FRS monitors SYSVOL, and if a change occurs to any file stored on SYSVOL, FRS automatically replicates the changed file to the SYSVOL folders on the other Domain Controllers in the Domain.

The NetVault Backup Plug‑in for FileSystem supports the following restore methods for the SYSVOL directory:

•
Primary Restore: Use this restore type only when restoring SYSVOL on a standalone Domain Controller, or on the first of several Domain Controllers. Typically, a primary restore is only required when all the Domain Controllers in the Domain are lost, and you are trying to rebuild the Domain from backup. Select Primary only for the first server. Do not use this restore type if you have already restored SYSVOL on one or more servers.
•
Authoritative Restore: Use this restore type when you have more than one Domain Controller to roll back the SYSVOL changes, and replicate the restored data to all other servers.
•
Non-Authoritative Restore: Use this restore type when you want to restore the data on a single Domain Controller in a replicated environment without replicating the restored data to the other servers.

Prerequisites

Before you start the restore procedure, ensure that the following requirements are met:

•
Verify that there are no Automatic Updates that are applied on reboot. If necessary, disable Automatic Updates, and reboot the machine. After restoring the system state, reboot the machine, and then enable Automatic Updates. If the Automatic Updates that are installed during reboot are inconsistent with restored data, it may cause system failure.
•
For a disaster recovery operation, verify that the following requirements are met:
•
The operating system version installed on the destination server is the same as the original server. All the patches and hotfixes installed on the original server are also installed on the target server.
 
* 
NOTE: All Windows updates should be performed after the restore completes.
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The number of drives on the destination server is equal to the number for drives on the original server. Each drive is of the same size as before or larger. The drive letter mapping is the same for all the drives.
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The file system format on the destination server is the same as the original server.
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The NetVault Backup version running on the destination server is the same as the original server.
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If the destination server is a Windows Domain Controller, start it in the Directory Services Restore Mode. To start the server in this mode, press F8 during boot, and select Directory Services Restore Mode in the list of boot methods.

Restoring System State data

To restore System State data:
1
In the Navigation pane, click Create Restore Job.
2
In the saveset table, select the saveset that you want to use, and click Next.
3
On the Create Selection Set page, select the data that you want to restore:
•
If you only want to restore the System State data from a saveset, select the System State node.
•
If you want to perform a disaster recovery, select the C drive or Fixed Drives node, and the System State node.
 
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IMPORTANT: On Domain Controllers, you must always include C Drive in System State backups and restores. When you include the C Drive, all information about the Group Policy Objects (GPOs) is included during backups and restores.

If you back up or restore only the System State data, you cannot edit the GPOs that are restored from the backups. When you try to edit the restored GPO, the following error message is displayed:

“Failed to open the Group Policy Object. You may not have appropriate rights.”

4
On the Create Selection Set page, click Edit Plugin Options.
5
Configure the standard restore options. For more information, see NetVault Backup Plug‑in for FileSystem Restore Options.
6
Under System State, ensure that the Live Restore option is selected.
 
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NOTE: To create a copy of the System State data without affecting the active system, select the Restore to a File option, and type the full file path to the alternate location where you want to restore the data. This option is intended for advanced users. Quest offers no support or instructions on how to use the data restored in this manner.
7
On a Domain Controller, select the method for restoring the SYSVOL directory:
•
Primary SYSVOL Restore: Select this check box only when you are rebuilding the Domain. You can use this option to restore a standalone Domain Controller, or to restore the first of several Domain Controllers.
•
Authoritative SYSVOL Restore: Select this check box to restore the system to a previously known state, and replicate the restored data to all the other servers.
•
Non-Authoritative SYSVOL Restore: Select this check box to restore a single Domain Controller and update the restored data through normal replication process.
8
Click Save to save the settings, and then click Next.
9
Complete Step 3 through Step 9 in Restoring data using the plug-in.

Restoring cluster database on Windows 2008

On Windows 2008, the NetVault Backup Plug‑in for FileSystem uses VSS for backing up and restoring the cluster database. The Windows Cluster Service must be running to use this feature. The NetVault Backup Plug‑in for FileSystem only supports the authoritative restore schema. In an Active-Active cluster, VSS stops other nodes when you perform a restore operation. These nodes must be manually restarted after restore. On Windows 2008, the following restore options are not available:

•
Force Cluster Database Restore
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Use Original Cluster Database Location
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Cluster Quorum Drive Letter
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