Administrator Guide
Recovering Data from a Remote Storage Center
Replay Manager is intended to provide only backup and recovery capabilities using individual restore
points for Microsoft VSS-enabled applications on the same Storage Center. Replay Manager is not
intended to be an end-to-end automated disaster recovery solution.
However, the snapshots created by Replay Manager can be leveraged for disaster recovery at a remote
site. Replays on remote sites appear like any other Replay taken with the Storage Center Data Instant
Replay feature. These Replays can be replicated using Dell Enterprise Manager.
Because the Replay Manager application is not used at remote sites, it has no knowledge of the Replays
being replicated from the source system, or that Replays now exist on a completely different storage
system at the recovery site.
The Replays created on remote sites outside of the Replay Manager environment can be used by making
changes to the ReadOnly, ShadowCopy, and Hidden attributes for the volume. The following procedure
outlines the steps required using the Storage Center System Manager and the DISKPART command. For
detailed information about using Storage Center, see the Storage Center System Manager Administrator’s
Guide.
Recover Data from a Remote Storage Center
For each volume you want to recover:
1. In the Storage Center System Manager, locate the remote site and select the volume to recover.
2. Click the Replays tab in the right pane.
3. Right-click the Replay to recover and select Create Volume from Replay.
4. In the Create Volume from Replay dialog box, accept the default or enter a new name (such as Log
Recovery).
5. Click Create Now.
6. The system creates a View Volume and displays the Map Volume to Server dialog box.
7. Select the server to which you want to map the Replay View Volume. If necessary, create a new
server and then click Continue.
8. On the server, in Disk Management, right-click and select Rescan Disks. This will refresh the iSCSI
bus and make the new volume visible. You may have to rescan more than once.
9. Bring the disk online in Disk Management and assign the appropriate drive letter or mount point to
the volume.
10. From a command-line interface (CLI) such as Command Prompt, type the following commands to
clear the necessary attributes to make the volume usable. Be sure to replace the text with your drive
letter where necessary.
C:\> DISKPART.EXE DISKPART> SELECT VOL <DRIVE LETTER> DISKPART> DETAIL VOL DISKPART>
ATT VOL CLEAR READONLY DISKPART> ATT VOL CLEAR HIDDEN DISKPART> ATT VOL CLEAR
SHADOWCOPY DISKPART> DETAIL VOL
The volume is now fully readable and writable and can be used for recovery operations.
11. If the volume is recovered in a Windows Server 2008, Windows Server 2008 R2, Windows Server
2012, or Windows Server 2012 R2 failover cluster, the Windows IO structure must be reset using
PowerShell. To reset the Windows IO structure, use the −ResetSnapshotInfo parameter of the Set
−DiskDevice cmdlet available in the Storage Center Command Set for Windows PowerShell (version
6.1 and later). For information on using this cmdlet, refer to the online Storage Center Command Set
help.
67