HP Serviceguard Continentalcluster manual 115

To support this feature, Continentalclusters must be configured with an environment that has physical replication set up using HP StorageWorks Continuous Access P9000 or XP, HP StorageWorks Continuous Access EVA or EMC Symmetrix Remote Data Facility (SRDF) using SLVM or Cluster Volume Manager (CVM) or Cluster File System (CFS) for volume management. For more information on specific Oracle RAC configurations that are supported, refer Table 2-8.

For complete installation and configuration information of Oracle and HP StorageWorks products, refer to the Oracle RAC and HP StorageWorks manuals.

Table 2–8 describes configuration information for RAC support of Continentalclusters

Table 14 Supported Continentalclusters and RAC Configuration

Oracle RAC	Disk Arrays	Volume Managers	Cluster File System	Required Metrocluster
Oracle RAC	HP StorageWorks	HP SLVM	Serviceguard	Metrocluster with Continuous
with/without	P9000 Disk Array	Serviceguard	Storage	Access for P9000 and XP
Clusterware	family or HP		Management Suite
		Storage
	StorageWorks XP Disk		CFS
		Management CVM
	Array series with
	Continuous Access
	HP StorageWorks	HP SLVM	Serviceguard	Metrocluster with Continuous
	EVA series with	Serviceguard	Storage	Access EVA
	Continuous Access		Management Suite
		Storage
			CFS
		Management CVM
	EMC Symmetrix series	HP SLVM	Serviceguard	Metrocluster with EMC SRDF
	with SRDF	Serviceguard	Storage	version
			Management Suite
		Storage
			CFS
		Management CVM

Use the following set of procedures to enable Continentalclusters recovery support for Oracle RAC instances:

1.Configure either Continuous Access P9000 or XP, or Continuous Access EVA or EMC SRDF for data replication between disk arrays associated with primary and recovery clusters. For more details, see Chapter 3: “Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access for P9000 and XP”, Chapter 4: “Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access EVA”, or Chapter 5: “Building Disaster Recovery Serviceguard Solutions Using Metrocluster with EMC SRDF”.

2.Configure the database storage using one of the following software:

•Shared Logical Volume Manager (SLVM)

•Cluster Volume Manager (CVM)

•Cluster File Systems (CFS)

You need to configure the SLVM volume groups or CVM disk groups on the disk arrays to store the Oracle database. Configure the volume groups or disk groups on both primary and recovery clusters. Ensure that the volume groups names or disk group names on both clusters are identical. You must also setup data replication between the disk arrays associated with primary and recovery clusters.

Only the volume groups or disk groups configured to store the database must be configured for replication across primary and recovery clusters. In the environment running with Oracle Clusterware, you must configure the storage used by Oracle Clusterware to reside on disks that are not replicated.

If you use CVM or CFS in your environment for storage infrastructure, you need to complete the following steps at both, primary and recovery clusters.

Support for Oracle RAC Instances in a Continentalclusters Environment 115