HP Application Recovery Manager software A.06.10 Concepts guide (March 2008)

During instant recovery, data in the source volumes is replaced by or copied from
that in the target volumes internally within the array. This makes the restore very fast.
Even though individual backup objects may be specified in the backup specification,
it is generally not possible to restore just those individual backup objects; only a
complete session can be selected for restore and, hence, only the complete replica
can be restored. Thus, not only the originally selected backup objects are restored,
but the complete contents of all the volume groups that contained them; their contents
will all be returned to the state they were in when the replica was created. The
exception here is the VSS agent, where some objects may be individually selected
for restore and restored successfully.
Replicas cannot be displayed or selected directly in the Application Recovery Manager
GUI, but the sessions that created replicas available for instant recovery can.
Because of the different types of replicas involved and various array limitations, the
detailed restore process is different for each array type and also for VSS integration.
For more information on XP and EVA restore process, see the HP Application Recovery
Manager software administrator's guide. For more information on VSS integration
restore process, see the HP Application Recovery Manager software integration
guide.
Because of the different types of replicas involved and various array limitations, the
detailed restore process is different for each array type. For more information, see
the HP Application Recovery Manager software administrator's guide.
Instant recovery process
The following is an example of instant recovery:
Figure 15 Instant recovery example
1. Decide which replica you want to restore and select the ZDB session that created
it.
2. Select the instant recovery options, which are provided primarily for selecting
the restore method and data security purposes.
Instant recovery and other restore techniques from ZDB sessions56