Red Hat Enterprise Linux High-Availability - Subscription license (3 years) - 2 sockets
- Clustering, fencing, and unfencing
- Rich GUI for cluster management and administration
- Unified logging and debugging
- Cluster virtual machines
The Red Hat Enterprise Linux High Availability Add-On provides on-demand failover to make applications highly available. It delivers continuous availability of services by eliminating single points of failure.
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Clustering
The High Availability Add-On enables applications to be highly available by reducing downtime and ensuring that there is no single point of failure in a cluster. It also isolates unresponsive applications and nodes so they can not corrupt critical enterprise data.
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Fencing and unfencing
The High Availability Add-On provides fencing capabilities, removing access to resources from a cluster node that has lost contact with the cluster, thereby protecting resources from uncoordinated modification. After SAN-based fencing and reboot of the fenced node by an administrator, the node can unfence itself upon joining the cluster.
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Rich GUI for cluster management and administration
The Conga application of Red Hat Enterprise Linux provides centralized configuration and management for the High Availability Add-On.
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Unified logging and debugging
System administrators can enable, capture, and read cluster system logs via a single cluster configuration command.
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Cluster virtual machines
Virtualization is pervasive throughout the enterprise datacenters. Not only is Red Hat Enterprise Linux designed to be a superior guest on any of the major hypervisors, it can also be a virtualization host. Virtualization is integrated directly into the Red Hat Enterprise Linux kernel using kernel-based virtual machine (KVM) technology.
