Configuring Windows HPC Server 2008 R2 for High Availability of the Head Node
Applies To: Windows HPC Server 2008 R2
This guide provides procedures and guidance for deploying Windows® HPC Server 2008 R2 where the head node is configured in a failover cluster. For this configuration, the operating system on the servers is Windows Server® 2008 R2. The failover cluster will contain two servers that work together, so if the server that is acting as the head node fails, the other server in the failover cluster automatically begins acting as the head node (in a process known as failover). Even if an outage occurs on a server, existing jobs can continue to run and new jobs can be submitted.
Setting up failover clustering enhances the availability of head node services for unscheduled and scheduled outages.
Unscheduled outages If there is a failure of a resource such as a hardware or software failure on a server that is acting as the head node, the result is a brief interruption during failover. After failover, you can work on the server that has the problem while the needed functionality continues to run on another server in that cluster.
Scheduled outages You might not want to lose functionality during routine node maintenance (for example, applying a service pack or hotfix, upgrading hardware, or updating an application). If your head node is configured in a failover cluster, one server in that cluster can support needed functionality while you apply software updates or upgrade hardware on another server in that failover cluster.
Before you begin your deployment, review the Release Notes for Windows HPC Server 2008 R2.
Sections in this guide
This guide contains the following sections: