HP Data Protector A.06.00 additional writers and HP StorageWorks Disk Array XP support for Microsoft Volume Shadow Copy Service integration

Overview
Instant recovery restores data directly from a replica to source volumes. All data in
the replica is restored (regardless of selections during backup). For instant recovery
concepts, see the HP OpenView Storage Data Protector Zero Downtime Backup
Concepts Guide.
Instant recovery can be performed:
• Using Microsoft Virtual Disk Service (VDS)
With this method, switch of a replica from the specified backup session with the
source volume is performed. Thus, instant recovery is very fast.
The source volume is unpresented and the target volume (replica) is presented in
place of the source volume. You can select to retain the original source volume.
However, you cannot retain the replica and perform another instant recovery
using this replica. Information about the replica is deleted from the VSSDB.
This method of instant recovery changes the physical location of the application
data, since, after instant recovery, a replica becomes the source volume. The
application starts running on the physical disks that were used for backup. If the
selected replica and its source volume belong to separate disk groups, the two
disk groups are also switched during instant recovery.
In case of the Data Protector XP integration, this type of instant recovery is
performed if backup was run using the XP VSS hardware provider in the VSS
compliant mode.
• Using Data Protector Disk Array XP Agent – SSEA
This type of instant recovery can be performed if backup was performed with the
XP VSS hardware provider in the resync mode.
With this type of instant recovery, Disk Array XP Agent (SSEA) synchronizes an
S-VOL with its P-VOL and then splits the pair during the instant recovery session.
If the option Wait for the replica to complete is selected, SSEA waits for
re-synchronization or copy process to complete (normal restore), before making
the source volume available. If this option is not selected, the source volume is
immediately available while the re-synchronization or copy process is running in
the background (quick restore).
IMPORTANT:
The original source volume is not retained after instant recovery. If the session
fails, the application data residing on the original source volumes is lost.
Integrating the Data Protector ZDB integrations and Microsoft Volume Shadow Copy Service118