HP 3PAR VSS Provider Software - Manual (Page 7)

HP 3PAR Storage System Requirements
•
HP 3PAR OS with the HP 3PAR Virtual Copy Software license enabled.
For the supported HP 3PAR OS release, refer to the latest Single Point of Connectivity
Knowledge for HP Storage Products (SPOCK) document. To obtain a copy of this
documentation, see
http://www.hp.com/storage/spock .
•
Snapshot space must be available on Virtual Volumes. To take snapshots on the base volume,
the volume must have snapshot space allocated during the base volume creation.
See the HP 3PAR InForm OS Command Line Interface Reference for instructions on creating
a base volume with snapshot allocation, or assigning snapshot space after the base volume
is created.
•
All system host ports associated with the same physical host must belong to the same virtual
domain.
Support for Multiple HP 3PAR Storage System Connections
HP 3PAR VSS Provider for Microsoft Windows supports multiple system connections to the same
host server where HP 3PAR VSS Provider for Microsoft is installed. This allows VSS hardware
snapshots to be managed from a host that is connected to multiple systems via HBA or iSCSI.
Consider the scenario where Exchange 2007 CCR is deployed in an organization with HP 3PAR
Recovery Manager Software for Exchange. The HP 3PAR Recovery Manager for Exchange backup
server will have connections to two HP 3PAR Storage Systems where the Active Exchange Server
is connected to the first system and the Passive Exchange Server is connected to the second system.
For the HP 3PAR Recovery Manager for Exchange backup server to support this type of CCR
configuration, the HP 3PAR VSS Provider on the backup server must have access to both the systems
to manage the snapshots accordingly.
Support for multiple HP 3PAR Storage Systems can be accommodated by registering the additional
systems using the ProvCfg.exe command available under the HP 3PAR VSS Provider installation
folder. See
“Using the ProvCfg Command to Set Up or Modify a System Connection” (page 17)
for more information.
NOTE: By default, the HP 3PAR VSS Provider for Microsoft Windows installation provides support
for a single system registration. Additional systems must be set up and registered using the
ProvCfg.exe
utility.
Features
The following features are included in HP 3PAR VSS Provider for Microsoft Windows:
•
Atomic Shadow Copy creation.
Supports up to 64 shadow copies per volume (snapshots to a volume) within a shadow copy
set.
•
Writable Snapshot Volume.
Provides a point-in-time writable snapshot volume by using the copy-on-write technique to the
Volume Shadow Copy Service. This is a very quick process and requires little storage space.
For more information about point-in-time snapshots and the copy-on-write technique, see the
HP 3PAR InForm OS Concepts Guide.
•
User mode DLL installed as a Windows service to provide communication between VSS and
HP 3PAR Storage Systems.
•
HP 3PAR Recovery Manager for Exchange.
Provides the capability to take a non-destructive virtual copy from Microsoft Exchange for
backup and fast recovery.
HP 3PAR Storage System Requirements 7