K Configuring Oracle RAC database with ASM in Continentalclusters using SADTA
Automatic Storage Management (ASM) is a feature in Oracle Database 10g and 11g that provides the database administrator with a simple storage management interface that is consistent across all server and storage platforms. In Continentalcluster, Oracle RAC with ASM must be configured using the SADTA.
Figure 6 (page 136) illustrates two Oracle RAC databases that are replicas of each other, and are configured one at each cluster in Continentalclusters using SADTA. The database workload at each cluster has its own Site Controller package and Site Safety Latch. The arrows in the Figure 6 (page 136) indicate the package dependencies. The Oracle Clusterware software must be installed at every cluster in the Continentalclusters.
Figure 6 Sample Oracle RAC database with ASM in SADTA
The CRS daemons at the clusters must be configured as a Serviceguard package using the HP Serviceguard extension for RAC (SGeRAC) toolkit in every Serviceguard cluster. The CRS Home must be installed on a file system that is local to the cluster. The CRS voting and OCR disks must not be configured for replication.
The RAC database software must be installed at every cluster in the Continentalclusters. Create ASM disk groups at the nodes in the primary cluster and configure an identical ASM disk group at the recovery cluster. The ASM disk group (ASM DG) must be configured as a Serviceguard package using the SGeRAC toolkit at every cluster.
The ASM DG package must have dependency on the CRS package on the cluster. Two replicas of the RAC database must be configured; one at the primary cluster and the other at the recovery cluster. The database must be created at the nodes in source site of the replication and the configuration and data must be replicated to the nodes in the other site.
The RAC database (RAC DB) must be configured using the SGeRAC toolkit at every site. The RAC DB package must have dependency on the CRS package and the ASM DG packages on the cluster.
136 Configuring Oracle RAC database with ASM in Continentalclusters using SADTA
