HPP Enterprises P4000 SAN - Manual (Page 45)

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Figure 38. Changing the direction
The CMC may be used with the Volume Failover/Failback Wizard.
Refer to the HP StorageWorks P4000 SAN User’s Guide for additional information on documented
procedures.
Disaster recoverability
Approaches to maximizing business continuity should rightly focus on preventing the loss of data and
services. However, no matter how well you plan for disaster avoidance, you must also plan for
disaster recovery.
Disaster recoverability encompasses the abilities to protect and recover data, and includes moving
your virtual environment onto replacement hardware.
Since data corruption can occur in a virtualized environment just as easily as in a physical
environment, you must predetermine restoration points that are tolerable to your business goals, along
with the data you need to protect. You must also specify the maximum time it can take to perform a
restoration, which is, effectively, downtime; it may be critical for your business to minimize this
restoration time.
This section outlines different approaches to disaster recoverability. Although backup applications can
be used within VMs, the solutions described here focus on the use of XenCenter tools and HP
StorageWorks P4000 SAN features to back up data to disk and maximize storage efficiency. More
information is provided on the following topics:
 Backing up configurations
 Backing up metadata
 Creating VM snapshots
 Copying a VM
 Creating SAN-based snapshots
 Rolling back a SAN-based snapshot