Red Hat Training
A Red Hat training course is available for Red Hat Enterprise Linux
1.3. Setting Up Hardware
Setting up hardware consists of connecting cluster nodes to other hardware required to run the Red Hat High Availability Add-On. The amount and type of hardware varies according to the purpose and availability requirements of the cluster. Typically, an enterprise-level cluster requires the following type of hardware (see Figure 1.1, “Red Hat High Availability Add-On Hardware Overview”). For considerations about hardware and other cluster configuration concerns, see Chapter 3, Before Configuring the Red Hat High Availability Add-On or check with an authorized Red Hat representative.
- Cluster nodes — Computers that are capable of running Red Hat Enterprise Linux 6 software, with at least 1GB of RAM.
- Network switches for public network — This is required for client access to the cluster.
- Network switches for private network — This is required for communication among the cluster nodes and other cluster hardware such as network power switches and Fibre Channel switches.
- Fencing device — A fencing device is required. A network power switch is recommended to perform fencing in an enterprise-level cluster. For information about supported fencing devices, see Appendix A, Fence Device Parameters.
- Storage — Some type of storage is required for a cluster. Figure 1.1, “Red Hat High Availability Add-On Hardware Overview” shows shared storage, but shared storage may not be required for your specific use.
Figure 1.1. Red Hat High Availability Add-On Hardware Overview