RAC- Cluster Verification Utility Overview

Cluster Verification Utility Overview

- Introduced in Oracle 10.2

- Checks cluster configuration

-stages - verifies all steps for specified stage have been completed

-components - verifies specified component has been correctly installed

- Supplied with Oracle Clusterware

Can be downloaded from OTN (Linux and Windows)

- Also works with 10.1 (specify -10gR1 option)

- For earlier versions see Metalink Note 135714.1
Script to Collect RAC Diagnostic Information (racdiag.sql)

Cluster Verification Utility Stages

CLUVFY Stages include:

Cluster Verification Utility Components

CLUVFY Components include:

Cluster Verification Utility Example

- For example, to check configuration before installing Oracle Clusterware on node1 and node2 use:

sh runcluvfy.sh stage -pre crsinst -n host1, host2

- Checks

node reachability

user equivalence

administrative privileges

node connectivity

shared stored accessibility

If any checks fail append -verbose to display more information

Cluster Verification Utility Trace & Diagnostics

- To enable trace in CLUVFY use:

     export SRVM_TRACE=true

-Trace files are written to the $CV_HOME/cv/log directory

-By default this directory is removed immediately after CLUVFY is execution

-On Linux/Unix comment out the following line in runcluvfy.sh

   # $RM -rf $CV_HOME

- Pathname of CV_HOME directory is based on operating system process e.g:

  /tmp/18124

- It can be useful to echo value of CV_HOME in runcluvfy.sh:

 echo CV_HOME=$CV_HOME