NOTE: Ensure that the SG-CFS-PKG (system multi-node) package is running for the CFS/CVM environment.

6.Startup the Oracle RAC instance packages on the primary cluster. If you have configured CFS or CVM in your environment, issue the following command from the master node:

# /opt/cmconcl/bin/ccrac_mgmt.ksh start

Alternatively, you can run the command on any node in the primary cluster.

This command fails back all of the RAC instance packages configured to adopt to this cluster as the primary cluster.

To failback only a specific set of the Oracle RAC instance package set.

# /opt/cmconcl/bin/ccrac_mgmt.ksh [-i <indexNumber>] \ start

<indexNumber> is the index used in the/etc/cmconcl/ccrac/ccrac.config file for the target set of the Oracle RAC instance packages.

Rehearsing Oracle RAC Databases in Continentalclusters

Special precaution is required for running disaster recovery (DR) rehearsal for Oracle RAC databases. For information on configuring and running rehearsal for RAC databases, see Disaster Recovery Rehearsal in Continentalclusters whitepaper available at: http://www.hp.com/go/ hpux-serviceguard-docs.

Support for Complex Workloads in a Continentalclusters Environment using

SADTA

Site Aware Disaster Tolerant Architecture (SADTA) enables deploying complex workloads in a cluster. Complex workloads are applications configured using multi-node and failover packages with dependencies. SADTA includes crucial components such as the Site Controller Package and the Site Safety Latch that manage the complex workload configuration. The Site Controller Package is a special failover package that is created using the dts/sc module to collectively manage the complex workload. The Site Safety Latch prevents the inadvertent simultaneous startup of the workload configuration on both sites. The Site Safety Latch is an internal mechanism that is created for each Site Controller Package.

For an overview of SADTA, and to understand its components, see the “Overview of Site Aware Disaster Tolerant Architecture” (page 337).

Continentalclusters is configured with two clusters - a primary cluster, and a recovery cluster. When configuring complex workload in Continentalclusters with SADTA, each cluster is configured with one site in the cluster configuration file. The complex workload is configured in packages at both the primary and recovery cluster. A Site Controller Package is created at each cluster to collectively start, halt, and monitor the complex workload packages. Starting the Site Controller Package in a cluster starts the corresponding complex workload packages in the cluster. The Site Safety Latch prevents inadvertent simultaneous startup of complex workload packages at both the primary and recovery clusters.

A Continentalclusters recovery group for a complex workload is configured with the corresponding Site Controller Package in the primary cluster as a primary package and the Site Controller Package in the recovery cluster as a recovery package. Figure 24 (page 126) illustrates the package view of a complex workload configuration in Continentalclusters with SADTA.

Support for Complex Workloads in a Continentalclusters Environment using SADTA 125