Recovering a 3DC PP configuration after an automatic transparent failover

If the Auto synchronize policy is not enabled and a three data center Peer Persistence (3DC PP) group fails over, you must recover the group manually using CLI commands. See the HPE Primera OS Command Line Interface reference guide for more information.

If an automatic failover occurs, restore the Remote Copy group back to the original configuration. In this procedure, SystemA identifies the primary or source storage system in the original configuration. SystemB identifies the secondary or target storage system. SystemC is the tertiary system. During the automatic transparent failover, SystemA failed over to SystemB.

Prerequisites

The DR state is Failover.
The primary or source system is back online.

Procedure

Log in to the secondary (failover) storage system (SystemB).
Recover the target system.
```
cli% setrcopygroup recover –t <sync target>
```
Where: <sync target> is the name of the target on the primary system (SystemA).
The Remote Copy group on SystemA is changed from primary to secondary-rev.
Reverse the role of the Remote Copy groups.
```
cli% setrcopygroup reverse -natural –t <sync target>
```
The Remote Copy group on SystemA is changed from secondary-rev to secondary. The Remote Copy group on SystemB is changed from primary-rev to primary.
Wait for the volumes to synchronize. To check the status:
```
cli% showrcopy
```
(Optional) To change the groups back to the original configuration:
```
cli% setrcopygroup switchover –t <sync target>
```
The Remote Copy group on SystemA is changed to primary. The Remote Copy group on SystemB is changed to secondary. The replication direction changes so that SystemA replicates to SystemB.