HP 3PAR Recovery Manager 2.0 Software for Microsoft Hyper-V User Guide (QL226-97701, May 2014)

C Remote Copy for Recovery Manager for Hyper-V
HP 3PAR Remote Copy Software helps you to safeguard against disasters that can occur at one
location, by allowing you to keep copies of data on a separate server which can be placed at a
remote location. For example, if there were a fire or earthquake at one location, all of the data
stored there could be lost unless a backup copy can be recovered from a separate location not
affected by the disaster.
To maintain updated copies of data at a remote location, Remote Copy uses two HP 3PAR StoreServ
Storage Systems: a primary system (used for production) and a Remote Copy backup system, which
can be located anywhere. Therefore, when disaster strikes in one location, there is always a backup
of your data at the backup site.
For more information, see the HP 3PAR Remote Copy Software User’s Guide.
How Recovery Manager for Disaster Recovery Solution Works
When you synchronize data between a production system (the Remote Copy primary system) on
one site and the Remote Copy backup system at another site, the systems involved perform the
following steps.
Recovery Manager for Hyper-V supports:
• Synchronous
• Periodic
PeriodicSynchronous
Recovery Manager leverages the VSS framework to freeze the I/O at the application level and to take point in
time snapshots.
For periodic remote copy groups, after the remote virtual
copies are created for the target LUNs, the remote RMH
For Synchronous remote copy groups, HP 3PAR VSS
leverages the co-ordinate snapshot technology provided
server repository is updated with the time stamp of theby the StoreServ to create remote virtual copies. The
remote virtual copy created. The local RMH server doeslocal RMH server saves the time stamp record of the
not retain any record of the virtual copy time stamp forVCs of a source LUN and remote RMH server saves the
the source LUNs of the remote copy group in its
repository.
time stamp record of a remote VCs in their respective
repositories.
NOTE: User can make use of the Expiration policy settings of Recover Manager. In this case,
the retained Virtual Copies are removed by the StoreServ after the expiration period has
elapsed.
Setting up Remote Copy
Remote Copy can be configured in the following ways:
How Recovery Manager for Disaster Recovery Solution Works 101