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Typical SF Oracle RAC cluster setup

Example four-node cluster running SF Oracle RAC depicts a high-level view of an SF Oracle RAC configuration for a four-node cluster. From a high-level, if you install SF Oracle RAC with Oracle9i or Oracle 10g and create a database, the SF Oracle RAC cluster typically has the following characteristics:

• Nodes connected by at least two VCS private network links using 100 Base T or Gigabit Ethernet controllers on each system.

  For two-node clusters, cross-over Ethernet cables are acceptable. For maximum performance, Symantec recommends the use of switches over hubs. In either case, use a minimum of two switches or hubs to provide necessary redundancy.

  If multiple links are present on a single switch, such as cases where three or four links are configured, a separate VLAN must be constructed for each link. Symantec does not support the use of multiple links on a single hub.

• Nodes connected to shared storage devices through Fibre Channel switch.

  Symantec does not support the use of shared SCSI with the SF Oracle RAC product. For a complete list of supported Fibre Channel storage devices, see the current hardware compatibility list on the Symantec Support Web site.

  http://support.veritas.com

• Oracle RAC database is configured on the shared storage that is available to each node. The shared storage could be cluster file system or raw volumes. All shared storage, including coordinator disks, must support SCSI-3 PR.
• VCS is configured to enable agents to direct and manage the resources required by Oracle RAC; these resources run in parallel on each node.

  Example four-node cluster running SF Oracle RAC

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