CVU includes two scripts: runcluvfy.sh (runcluvfy.bat on Windows), which you use before installing Oracle software, and cluvfy (cluvfy.bat on Windows), located in the Grid_home/bin directory. The runcluvfy.sh script contains temporary variable definitions which enable it to run before you install Oracle Grid Infrastructure or Oracle Database. After you install Oracle Grid Infrastructure, use the cluvfy command to check prerequisites and perform other system readiness checks.
Note:
Oracle Universal Installer runs cluvfy to check all prerequisites during Oracle software installation.
Before installing Oracle software, run runcluvfy.sh from the mountpoint path of the software installation media, as follows:
cd /mountpoint ./runcluvfy.sh options
In the preceding example, the options variable represents CVU command options that you select. For example:
$ cd /mnt/dvdrom $ ./runcluvfy.sh comp nodereach -n node1,node2 -verbose
When you enter a CVU command, it provides a summary of the test. During preinstallation, Oracle recommends that you obtain detailed output by using the -verbose argument with the CVU command. The -verbose argument produces detailed output of individual checks. Where applicable, it shows results for each node in a tabular layout.
Run the CVU command-line tool using the cluvfy command. Using cluvfy does not adversely affect your cluster environment or your installed software. You can run cluvfy commands at any time, even before the Oracle Clusterware installation. In fact, CVU is designed to assist you as soon as your hardware and operating system are operational. If you run a command that requires Oracle Clusterware on a node, then CVU reports an error if Oracle Clusterware is not yet installed on that node.
The node list that you use with CVU commands should be a comma-delimited list of host names without a domain. CVU ignores domains while processing node lists. If a CVU command entry has duplicate node entries after removing domain information, then CVU eliminates the duplicate node entries.
For network connectivity verification, CVU discovers all of the available network interfaces if you do not specify an interface on the CVU command line. For storage accessibility verification, CVU discovers shared storage for all of the supported storage types if you do not specify a particular storage identification on the command line. CVU also discovers the Oracle Clusterware home if one is available.
See Also:
"Privileges and Security" for usage security information