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  Oracle Database Tips by Donald Burleson

Oracle10g Grid Computing with RAC
Chapter 6 - Install, Configure and Database Creation

CRS Installation

a) Oracle Cluster Registry Configuration Tool (ocrconfig). If this tool detects a version of RAC, then the tool upgrades the OCR block format to an Oracle Database 10g OCR block format.

 b) Cluster Configuration Tool (clscfg) - This tool automatically configures your cluster and creates the OCR keys.

  1. That would take you to the end of CRS installation.

After the CRS is successfully installed, you should see the following services running:

  • oprocd - Process monitor for the cluster. Note that this process will only appear on platforms that do not use vendor clusterware with CRS.

  • evmd - Event manager daemon that starts the racgevt process to manage callouts.

  • ocssd - Manages cluster node membership and runs as oracle user. Failure of this process results in cluster restart.

  • crsd - Performs high availability recovery and management operations such as maintaining the OCR. Also manages application resources and runs as root user and restarts automatically upon failure.

The above text is an excerpt from:

Oracle 10g Grid & Real Application Clusters
Oracle 10g Grid Computing with RAC
ISBN 0-9744355-4-6

by Mike Ault, Madhu Tumma


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