Implementing disaster recovery for HP Integrity Virtual Machines with Metrocluster and Continentalclusters on HP-UX 11i

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Figure 2. VM guest storage in the Metrocluster
Notes:
1. If required, the VxVM disk groups vxpriosdg and vxpriexedg can be shared among all nodes in the primary site.
Similarly, the VxVM disk groups vxsecosdg and vxsecexedg can be shared among all nodes in the recovery site.
This way the OS image and application binaries would be shared by VMs on different nodes in the same data
center. But the disadvantage is that the shared OS and application environment might become a single point of
failure (SPOF) within a data center.
The subsequent sections contain information on how to create device groups for Metrocluster Continuous Access
XP/P9000, Metrocluster SRDF, or Metrocluster Continuous Access EVA.
2. Each Metrocluster package can have only one device group (DG) configured in it. This means, in a Metrocluster
environment, each VM setup can use only one DG. Inside the VM, all application data that needs remote protection
has to reside on those disks that belong to the configured DG.