Understanding the HP Serviceguard Extension for Oracle E-Business Suite (SGeEBS)

The APPS and DB packages of EBS should be configured in two separate recovery groups. In

Continentalclusters, recovery group is used to define a set of related primary packages on one cluster

and the recovery packages on another cluster that protect the primary packages. The cmrecovercl

command, when run, will start up the recovery packages and enables switching during the cluster

recovery operation. The cmrecovercl command may only be run when there is an outage at primary

site and a timeout has occurred. The DB Tier package should be recovered first. Once the DB Tier

package comes up on the recovery cluster, the APPS Tier package can be recovered. Recover

individual recovery groups by using the following commands:

# cmrecovercl -g DBTier_RecoveryGroup

# cmrecovercl -g APPSTier_RecoveryGroup

Running the cmrecovercl with option -g starts up only the recovery package configured in the

specified recovery group.

After the cmrecovercl command is issued, there is a delay of at least 90 seconds per recovery group

as the command makes sure that the package is not active on another cluster. Use the cmviewcl

command on the local cluster to confirm that the recovery packages are running correctly.

Figure 3: SGeEBS in a Continentalclusters environment

Primary

Package

Node 1

Node 2

Recovery group for

Apps package

DB Tier

Apps Tier

Primary

Package

Node 1

Node 2

Data

Receiver

Package

Recovery

Package

Continentalcluster

Data

Receiver

Package

Recovery group

Recovery group for the

DB package

SG Cluster 2

(Recovery Cluster)

Recovery

Package

SG Cluster 1

(Primary Cluster)