HP 3PAR Application Software Suite for Oracle - Manual (Page 147)

The best recovery option is recovering from the asynchronous periodic backup system S336. To
recover, perform the following sequence of actions:
•
Perform the failover operation on the asynchronous periodic backup system S336.
After failover operation, there are two options to bring up the database on the DR site(S336):
◦ If the remote copy group for datafiles and the remote copy group for archive log file
destinations are the same, the failover operation will make sure the remote base volumes
on the periodic backup system S336 are synced within the same group, the remote base
volumes are application consistent and can be used to bring up the Oracle database on
the backup server pe2950-24 which connects to S336
◦ If the remote copy groups for datafiles and archive log destinations are not the same,
there is no guarantee for application consistence among the remote base volumes which
belong to different Remote Copy groups. To avoid using inconsistent data from different
remote copy groups, HP recommends to use the valid Virtual Copy created from using
the Recovery Manager for Oracle command rmora_rsync. This Virtual Copy can be
used to later mount and clone the database on the backup server pe2950-24 which
connects to S336. This Virtual Copy can also be used in the first scenario in place of the
remote base volumes, if that is desired.
In this case study, we will use the Virtual Copy created by running rmora_rsync before the
local StorageServ Storage System became unavailable.
•
After the local system is recovered and returns to the normal state, remove the LUNs used by
the cloned database, and then use the rmora_rollback command to rollback the base volumes
with the latest changes made to the database. Then perform the recovery by pushing data to
the local system S256 and then reversing the data replication direction to return the Remote
Copy configuration to its original setup.
Recovering to the Asynchronous Periodic Backup System when the Local and Synchronous Backup Systems are Unavailable 147