Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access for P9000 and XP A.11.00

CFS file system at the host for database storage management. As the underlying Serviceguard
cluster is configured with the site, there are two CFS sub-clusters: one at the Site A site with
membership from SFO_1 and SFO_2 nodes and the other at the Site B site with membership from
SJC_1 and SJC_2 nodes.
Figure 49 Sample configuration procedures for SADTA
Site safety
latch
SiteA_hrdb_dg
Site A
Node 1
Disk Array
Node 2
Router Router
Node 3 Node 4
Site B
Disk Array
hrdb_dg
hrdb_dg
SiteA_hrb
SiteA_hrdb_mp
hrdb SC
CFS Subcluster
SiteB_hrb
SiteB_hrdb_mp
SiteB_hrdb_dgSiteA_hrdb_dg
CFS Subcluster
Active Inactive
To configure SADTA, two CRS sub-clusters; one at the Site A and the other at the Site B, must be
created. The Oracle Clusterware software must be installed at every site in the Metrocluster. The
CRS daemons at the sub-clusters must be configured as a Serviceguard package using the SGeRAC
toolkit. The CRS Home is installed on a file system that is local to a site. The CRS voting and OCR
disks must not be configured for replication.
Table 27 lists the CRS packages and other resources that form the CRS sub-cluster at every site.
Table 27 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
Configuring Oracle RAC database in a Site Aware Disaster Tolerant Architecture(SADTA) 193