Configuring HP Serviceguard Toolkit for Oracle Data Guard

Continentalclusters environment

Figure 2: ODG Toolkit in a Continentalclusters environment

Figure 2 depicts a typical Continentalclusters environment, which consists of a Primary Cluster (SG

Cluster 1) and a Recovery Cluster (SG Cluster 2). Even though both these clusters can have more than

two nodes, we have used only two nodes in the clusters in our example. In the Primary Cluster, Data

Guard is configured using the ODG Toolkit and the Oracle database is placed on a disk that is

shared between the nodes in the Primary Cluster. The standby database is created in the Recovery

Cluster and is also placed on a shared disk.

A Recovery group is created in the Continentalclusters environment with the following three packages

in it:

1. Primary package: This package is created using the ODG Toolkit on the Primary Cluster. This

package will bring up the Oracle database on the Primary Cluster as a primary database and will

start monitoring the primary database processes. If the primary database fails on Node 1, then the

Primary package will be failed over to another node within the Primary Cluster.

2. Data Receiver package: This package is created using the ODG Toolkit on the Recovery Cluster.

This package will bring the Oracle database on the Recovery Cluster in Standby mode and will

start monitoring the standby database processes. If the standby database fails, then this package

will halt the Oracle database and will failover the package to another node within the Recovery

Cluster.

3. Recovery package: This package is also created using the ODG Toolkit on the Recovery Cluster. It

will be configured to bring up the Oracle database on the Recovery Cluster in Primary mode.

Initially, this package will be in halted state.

All the above three packages are configured as failover packages.

Continentalcluster

Node

SG Cluster

(

Primary Cluster

)

SG Cluster

(

Recovery Cluster

)

Primary

package

Data

Receiver

package

Recovery

package

Standby

Primary

Recovery group

Node