• Not all VSS writers supported by Data Protector can be used with the instant
recovery functionality. For a list of the VSS writers that support the instant recovery
functionality, see the latest support matrices at http://www.hp.com/support/
manuals.
Configuring the integration
The Data Protector Microsoft Volume Shadow Copy integration by itself does not
require any configuration steps neither on the Data Protector 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.
VSS writers are either a part of Windows operating system or delivered with
applications. Data Protector automatically detects writers when the VSS backup
specification is created and registers them.
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
• For instant recovery enabled backups, VDS hardware providers should be present
in the list of installed software. Check Control Panel > Add/Remove Programs.
For instant recovery enabled backups, 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 the
command prompt, run:
mountvol /N
• Do not manually mount target volumes that have been created by Data Protector.
• For cluster-aware clients, install the Data Protector VSS integration software
component on all the cluster nodes.
Configuring the application system for instant recovery-enabled
backup sessions
To be able to perform instant recovery-enabled backups and then instant recovery,
you must resolve the application system using the omnidbvss command. During the
Zero downtime backup integration guide 347
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