HP Application Recovery Manager software Integration guide (March 2008)

or RAID Manager XP for this purpose. Do not delete references from the ZDB
database before you make sure that all LUNs that had been created in that backup
session have been deleted from the array.
• If the Disk Array XP VSS hardware provider is in the resync mode, and the backup
system is configured as the virtual server in a quorum cluster, you must create a
host group on the disk array that contains host bus adapter (HBA) World Wide
Names (WWNs) from all physical systems in your cluster.
If such host group is not created, your backups may fail after the cluster fails over
from one physical node to the other. If a failover occurs, the backup session will
fail to rotate the oldest replica and will not free the MU number that has been
used for the mirror replica in that session. As a consequence, a new backup
session will not have a free MU number available to create a new mirror and the
session will fail. You can prevent this failure by setting the Number of replicas
rotated option to a value of 1 and configure the Disk Array XP VSS hardware
provider to use all available MU numbers.
• Dynamic disks (Logical Disk Manager partitions) are not supported.
• GPT disks are not supported.
Configuring the integration
The Application Recovery Manager Microsoft Volume Shadow Copy integration by
itself does not require any configuration steps neither on the Application Recovery
Manager nor on the application side. However, some applications such as Microsoft
Exchange Server may require additional configuration steps. For details, see the
appropriate sections. You must also configure the VSS and VDS hardware providers.
You may check which writers and providers are installed and registered on your
system using the following Windows operating system command:
• For a list of writers: VSSadmin list writers
• For a list of VSS providers: VSSadmin list providers
• VDS hardware providers should be present in the list of installed software. Check
Control Panel > Add/Remove Programs.
Only non-system writers are supported, because instant recovery cannot be performed
on a system disk.
Prerequisites
• Disable the operating system option Automatic mounting of new volumes. At
Command Prompt, run:
mountvol /N
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