HP StoreOnce VSA Backup System User Guide (TC458-96025)

10. The Summary screen is displayed. Click Apply to create the share mapping configuration.
Replication of files will start immediately.
NOTE: If you can colocate the Target Appliance on the same LAN as the Source Appliance
to improve replication performance, relocate the Target Appliance to the target site as soon
as the files are synchronized.
Recovering a Source Appliance (NAS shares)
There are two ways of recovering NAS shares mappings after a disaster.
• Reverse replication using the wizard (page 76)
• Promotion of Target share over the WAN (page 79)
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 the mapping is left
unbroken, the now blank Source Share (on the replacement disks) will overwrite the data on the
Target Share, effectively losing backup data on both Source and Target Shares.
Reverse replication using the wizard
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 the mapping is left
unbroken, the now blank Source Share (on the replacement disks) will overwrite the data on the
Target Share, effectively lose backup data on both Source and Target Shares.
In this example, the remote site lost both the host servers and the StoreOnce Backup system. New
hardware was purchased and installed, and the administrator must recover data to the StoreOnce
Backup system and restore to the host server. Before the failure, a mapping existed between a
Source Share on the remote site StoreOnce Backup system and a Target Share on the Data Center
StoreOnce Backup system. After the failure, the Source Share is missing; the mapping may or may
not still exist.
1. Create a new non-replicating share on the Source Appliance (using the Create button on the
NAS Shares page).
76 Replication functions