Veritas Storage Foundation 5.0 for Oracle RAC Configuration Guide Extracts for HP Serviceguard Storage Management Suite, Second Edition, May 2008

Introducing Serviceguard Extension for RAC

About Serviceguard Extension for RAC

Chapter 1

About Serviceguard Extension for RAC

HP Serviceguard Extension for RAC (SGeRAC) is a storage management and clustering

solution that is included with the HP Serviceguard Storage Management Suite (SG

SMS) Serviceguard Cluster File System for RAC bundle. The SG SMS Serviceguard

Cluster File System for RAC bundle integrates existing storage management and

clustering technologies into a flexible solution for administrators, providing a robust

infrastructure for Oracle® Real Application Clusters (RAC) that simplifies management

of RAC databases.

NOTE The HP Serviceguard Storage Management Suite (SG SMS) provides many options for

clustering and storage. The information in this document corresponds to the

Serviceguard Cluster File System for RAC option. Refer to the HP Serviceguard Storage

Management Suite version A.02.00 Release Notes for the HP-UX version you are running,

for specific information on bundled features and options. You can access the HP

Serviceguard Storage Management Suite version A.02.00 Release Notes at:

http://docs.hp.com/en/ha.html#HP%20Serviceguard%20Storage%20Management%20Sui

SGeRAC enables you to:

• Create a standard approach toward application and database management in data

centers. While other clusterware can only work with an Oracle database, SGeRAC

incorporates existing storage management and clustering technologies that provide

flexible support for many types of applications and databases. Administrators can

apply existing expertise of technologies toward this product.

• Set up an infrastructure for Oracle RAC that simplifies database management while

fully integrating with Oracle Clusterware, formerly known as Oracle Cluster Ready

Services (CRS).

• Enhance scalability and availability with access to eight RAC instances per database

in a cluster.

• Transition from a local high availability site to a wide-area disaster recovery

environment with primary and secondary sites.

• Back up and recover databases using volume-level and file system-level snapshot

technologies. SGeRAC enables full volume-level snapshots for off-host processing

that reduce load on production systems, and file system-level snapshots that involve

efficient backup and rollback processes.

• Prevent data corruption at the storage layer with robust split-brain protection.

• Increase scalability with high throughput and low latency technology for use by

Oracle Cache Fusion.

• Share all types of files, in addition to Oracle database files, across nodes.

• Increase availability and performance with dynamic multipathing (DMP), which

provides wide storage array support for protection from failures and performance

bottlenecks in the HBAs and SAN switches.

• Optimize I/O performance through storage mapping technologies and tunable

attributes.