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          Red Hat Corp. High Availability

          Red Hat Corp. High Availability
          More From: Red Hat
          Item #: 17017853
          Mfr. Part#: RH00025
          Availability: In Stock
          Est. Ship: Virtual delivery

            Ordering Information

            Price:
            $404.45
             
            The High Availability Add-On for Red Hat Enterprise Linux provides continuous availability of services by eliminating single points of failure. By offering failover services between nodes within a cluster, the High Availability Add-On supports high availability for up to 16 nodes.

            The High Availability Add-On also enables failover for off-the-shelf applications such as Apache, MySQL, and PostgreSQL, any of which can be coupled with resources like IP address and single-node file systems to form highly available services. The High Availability Add-On can also be easily extended to any user-specified application that is controlled by an init script per UNIX System V (SysV) standards.

            When using the High Availability Add-On, a highly available service can fail over from one node to another with no apparent interruption to cluster clients. The High Availability Add-On also ensures absolute data integrity when one cluster node takes over control of a service from another cluster node. It achieves this by promptly evicting nodes from the cluster that are deemed to be faulty using a method called "fencing" that prevents data corruption. The High Availability Add-On supports several types of fencing, including both power- and storage area network (SAN) -based fencing.
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            Licensing
            Fulfillment Type Subscription
            Licensing Programs Red Hat
            Maintenance Included No
            Returns Policy This product is subject to our return policy. Please see our complete return policy for details.This product is subject to our return policy. Please see our complete return policy for details.
            UNSPSC 43233004
            Warranty - Labor N/A
            Warranty - Parts N/A
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