Figure 61 Sample Configuration

To configure SADTA, two CRS sub-clusters; one at the San Francisco site and the other at the San Jose site, must be created. The Oracle Clusterware software must be installed at each 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 28 lists the CRS packages and other resources that form the CRS sub-cluster at each site.

Table 28 CRS Sub-clusters configuration in the Metrocluster

Site

San Francisco

San Jose

 

 

 

CRS Cluster Name

sfo_crs

sjc_crs

 

 

 

Members

SFO_1 and SFO_2

SJC_1 and SJC_2

 

 

 

CRS MNP

sfo_crs

sjc_crs

 

 

 

CRS Interconnect MNP

sfo_crs_ic

sjc_crs_ic

 

 

 

CRS HOME

/opt/crs/oracle/product/10.2.0/crs

/opt/crs/oracle/product/10.2.0/crs

 

 

 

CRS OCR

/cfs/sfo_crs/OCR/ocr

/cfs/sjc_crs/OCR/ocr

 

 

 

CRS Voting Disk

/cfs/sfo_crs/VOTE/vote

/cfs/sjc_crs/VOTE/vote

 

 

 

CRS mount point

/cfs/sfo_crs

/cfs/sjc_crs

 

 

 

CRS MP MNP

sfo_crs_mp

sjc_crs_mp

package

 

 

 

 

 

CRS DG MNP

sfo_crs_dg

sjc_crs_dg

package

 

 

 

 

 

CVM DG Name

sfo_crsdg

sjc_crsdg

 

 

 

Private IPs

192.1.7.1 SFO_1p.hp.com

192.1.8.1 SJC_1p.hp.com

 

192.1.7.2 SFO_2p.hp.com

192.1.8.2 SJC_2p.hp.com

 

 

 

Virtual IPs

16.89.140.202 SFO_1v.hp.com

16.89.141.202 SJC_1v.hp.com

 

16.89.140.204 SFO_2v.hp.com

16.89.141.204 SJC_2v.hp.com

 

 

 

In this example, two replicas of the RAC database need to be configured; one at San Francisco and the other at San Jose. The database must be created at the nodes in the San Francisco site and the configuration and data must be replicated to the nodes in the San Jose site. The RAC database software must be installed 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. The RAC database must be configured 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,

Configuring Oracle RAC Database in a Site Aware Disaster Tolerant Architecture 365