11.1 ETERNUS CS800 Replication Overview
2. (Optional) Map your backup application to the recovered share or partition on the target
system to continue making backups.
3. When the source system is operating correctly again, choose one of the following
actions:
l
Failback the share or partition to restore it on the original source system (see
Overview: Performing a Share or Partition Failback" on page 370
necessary, map your backup application to the restored share or partition on the
original source system.
l
Continue to make backups to the recovered share or partition on the original target
system. In addition, set up replication to replicate the share or partition back to the
original source system (see
"Task Overview: Setting Up and Performing
). In this scenario, the original source system is now the
target, and the original target system is now the source.
Task Overview: Performing a Share or Partition Failback
If a NAS share or VTL partition is lost or damaged on the source system, you can failback the
share or partition to the source system using a received snapshot on the target system.
When you failback a share or partition, it is restored on the source system just as it was at
the point in time when the snapshot was saved.
To perform a share or partition failback:
1. On the original source system, add the original target system to the list of allowed
replication sources (see
"Adding a Replication Source" on page 278
).
For the purposes of failback, the original source system is now acting as a
target because it will receive the snapshot from the original target system.
2. On the original target system, select a received snapshot and perform a failback
operation pointing to the original source system, and then recover the share or partition
on the original source system (see
"Performing a Failback For a Share" on page 384
or
"Performing a Failback For a Partition" on page 395
).
The share or partition is now available on the original source system.
3. (Optional) If necessary, map your backup application to the restored share or partition on
the original source system.
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