Building Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy

To configure SADTA:
1. Create two CRS sub-clusters; one at the Site A and the other at the Site B.
2. Install the Oracle Clusterware software at each site in the Metrocluster.
3. Configure the CRS daemons at the sub-clusters as a Serviceguard package using SGeRAC
toolkit.
4. Install CRS Home on a file system that is local to a site.
NOTE: The CRS voting and OCR disks must not be configured for replication.
Table 15 lists the CRS packages and other resources that form the CRS sub-cluster at each site.
Table 15 CRS sub-clusters configuration in the Metrocluster
Site BSite ASite
sjc_crssfo_crsCRS Cluster Name
SJC_1 and SJC_2SFO_1 and SFO_2Members
sjc_crssfo_crsCRS MNP
sjc_crs_icsfo_crs_icCRS Interconnect MNP
/opt/crs/oracle/product/10.2.0/crs/opt/crs/oracle/product/10.2.0/crsCRS HOME
/cfs/sjc_crs/OCR/ocr/cfs/sfo_crs/OCR/ocrCRS OCR
/cfs/sjc_crs/VOTE/vote/cfs/sfo_crs/VOTE/voteCRS Voting Disk
/cfs/sjc_crs/cfs/sfo_crsCRS mount point
sjc_crs_mpsfo_crs_mpCRS MP MNP
package
sjc_crs_dgsfo_crs_dgCRS DG MNP
package
sjc_crsdgsfo_crsdgCVM DG Name
192.1.8.1 SJC_1p.hp.com
192.1.8.2 SJC_2p.hp.com
192.1.7.1 SFO_1p.hp.com
192.1.7.2 SFO_2p.hp.com
Private IPs
16.89.141.202 SJC_1v.hp.com
16.89.141.204 SJC_2v.hp.com
16.89.140.202 SFO_1v.hp.com
16.89.140.204 SFO_2v.hp.com
Virtual IPs
In this example, two replicas of the RAC database must be configured; one at Site A and the other
at Site B. Create the database at the nodes in the Site A and replicate the configuration and data
to the nodes in the Site B. Install the RAC database software on the local file system at each node.
The database uses two CFS file systems for database files; one for the database data and the other
for flash recovery area. Configure the RAC database using the SGeRAC toolkit at each site. The
disk group names and file systems mount point paths must be the same for both the site databases.
However, the disk groups and mount points are packaged using different packages at each site
CFS sub-cluster.
Table 16 lists the packages and other resources at each site.
Table 16 Sample database configuration
Site BSite ASite Details
hrdb_devgrouphrdb_devgroupRAC HRDB RAID Device group
name
hrdbdghrdbdgRAC HRDB data files Disk
Group name
78 Configuring Oracle RAC in SADTA