HP StoreOnce D2D4324 HP StoreOnce VSA user guide (TC458-96002, July 2013) - Page 61

Recovering a Source Appliance (Virtual Tape devices)

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10. Click Apply to create the slot mapping configuration. Click OK at the Wizard Complete prompt. Replication of cartridges will start as soon as the libraries have been synchronised. Look at the Replication Status field on the Library Details section of the VT Mappings page. It changes from "Pending Synchronization" to "Synchronizing" to "Synchronized". NOTE: If you were able to co-locate the Target Appliance on the same LAN as the Source Appliance to improve replication performance, remember to relocate the Target Appliance to the target site as soon as the cartridges are synchronized. Recovering a Source Appliance (Virtual Tape devices) The Replication Recovery wizard allows Admin users to recover mapping configurations after a disaster. For example: the remote site has lost both the host servers and the StoreOnce system. New hardware has been purchased and installed and the administrator now wants to recover data to the StoreOnce Backup system and then restore to the host server. Before the failure a mapping existed between a Source Library on the remote site StoreOnce Backup system and a Target Library on the Data Center StoreOnce Backup system. After the failure the Source Library is missing; the mapping may or may not still exist. IMPORTANT: If you replace the disks in the source StoreOnce Backup system and keep the original appliance, the source to target mapping will still exist on the repaired StoreOnce Backup system. You MUST break this mapping BEFORE carrying out recovery. If you do not, the now blank Source Library (on the replacement disks) will overwrite the data on the Target Library. You will effectively lose backup data on both Source and Target Libraries. VT Mappings (Replication) 61

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10. Click
Apply
to create the slot mapping configuration. Click
OK
at the Wizard Complete
prompt.
Replication of cartridges will start as soon as the libraries have been synchronised. Look at
the
Replication Status
field on the
Library Details
section of the
VT Mappings
page. It changes
from “Pending Synchronization” to “Synchronizing” to “Synchronized”.
NOTE:
If you were able to co-locate the Target Appliance on the same LAN as the Source
Appliance to improve replication performance, remember to relocate the Target Appliance
to the target site as soon as the cartridges are synchronized.
Recovering a Source Appliance (Virtual Tape devices)
The Replication Recovery wizard allows Admin users to recover mapping configurations after a
disaster.
For example: the remote site has lost both the host servers and the StoreOnce system. New hardware
has been purchased and installed and the administrator now wants to recover data to the StoreOnce
Backup system and then restore to the host server. Before the failure a mapping existed between
a Source Library on the remote site StoreOnce Backup system and a Target Library on the Data
Center StoreOnce Backup system. After the failure the Source Library is missing; the mapping may
or may not still exist.
IMPORTANT:
If you replace the disks in the source StoreOnce Backup system and keep the
original appliance, the source to target mapping will still exist on the repaired StoreOnce Backup
system. You MUST break this mapping BEFORE carrying out recovery. If you do not, the now blank
Source Library (on the replacement disks) will overwrite the data on the Target Library. You will
effectively lose backup data on both Source and Target Libraries.
VT Mappings (Replication)
61