HP StoreOnce D2D4324 HP D2D25xx, 41xx and 43xx Backup System user guide (EH985 - Page 104

Recovering a Source Appliance (NAS shares), Reverse replication using the wizard

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Recovering a Source Appliance (NAS shares) 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 Share (on the replacement disks) will overwrite the data on the Target Share. You will, effectively, lose backup data on both Source and Target Shares. Reverse replication using the wizard In this 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. Seeding It is possible to reverse seed the first full restore using a USB disk, as follows: 1. Map from the host at the target site to the NAS share on the HP StoreOnce Backup System and copy the share to a USB disk attached to the host. 2. Transport the media to the Replication Source site and attach it to a host. 3. Map from a host at the source site to the new share on the Replication Source and copy across the data from the USB disk before running the Recovery wizard. Figure 13 Recovery by reverse seeding NAS shares on a replacement source appliance 104 Restore processes with replication

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Recovering a Source Appliance (NAS shares)
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 Share (on the replacement disks) will overwrite the data on the Target Share. You
will, effectively, lose backup data on both Source and Target Shares.
Reverse replication using the wizard
In this 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.
Seeding
It is possible to reverse seed the first full restore using a USB disk, as follows:
1.
Map from the host at the target site to the NAS share on the HP StoreOnce Backup System
and copy the share to a USB disk attached to the host.
2.
Transport the media to the Replication Source site and attach it to a host.
3.
Map from a host at the source site to the new share on the Replication Source and copy across
the data from the USB disk before running the Recovery wizard.
Figure 13 Recovery by reverse seeding NAS shares on a replacement source appliance
104
Restore processes with replication