- The use of Red Hat Hat Enterprise Linux High Availability combined with Red Hat Enterprise Linux Xen or KVM provides the ability to run mission-critical applications in a highly-available virtualized environment. As with any cluster, running virtual guests in a cluster requires a method for disconnecting one or more of them from shared resources in the event of a failure. Since virtual guests do not have access to any physical hardware that would typically be used for fencing, an alternate method is required to accomplish this.
Please see Virtualization Support for High Availability in Red Hat Enterprise Linux 5 and 6 for information on which virtualization configurations are supported in conjunction with Red Hat Enterprise Linux HA Clusters.
- Red Hat Enterprise Linux 5 Advanced Platform (Clustering and GFS/GFS2)
- Red Hat Enterprise Linux 6 with the High Availability Add-On or Resilient Storage Add-On
- Red Hat Enterprise Linux 5 using either Xen or KVM hypervisor as a host, Red Hat Enterprise Linux 6 using KVM hypervisor as a host
- Red Hat Enterprise Linux 5 or 6 used as a guest
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