Best Practices for SGeRAC and Oracle RAC on HP-UX 11i, March 2009

• RIP – Serviceguard Relocatable IP Address user for client application access and failovers with

package

• SG-HB – Serviceguard Heartbeat traffic.

• SGeRAC – Serviceguard Extension for RAC extends Serviceguard to support Oracle RAC.

• SLVM – Shared Logical Volume Manger allows multi-system shared access to LVM volumes for RAC.

• VIP – Virtual IP address is used by OC to configure access to Oracle clients and for remote failover

to reject client connections.

• Voting Disk – Shared storage used by Oracle Clusterware as vote tie breaker and for disk based

heartbeat.

Basic configuration

Figure 1 illustrates a basic configuration that includes common high availability (HA) components in

SGeRAC clusters.

There are redundant nodes in the cluster to protect against node failures. You can increase

availability by configuring more nodes; the maximum number supported is documented at the HP

Technical Documentation site

. Each node runs the same set of processes. All network and storage

are protected by redundant components. SG-HB refers to Serviceguard heartbeat and cluster traffic.

CSS-HB refers to Oracle Clusterware heartbeat and cluster traffic. RAC-DB-IC refers to Oracle RAC

database cluster interconnect traffic.

http://docs.hp.com/ à High Availability à Serviceguard Extension for Real Application Cluster à Support Matrixes

(http://docs.hp.com/en/6257/SGeRAC-SLVM-CVM_Support.pdf)