The cluvfy commands have context sensitive help that shows their usage based on the command-line arguments that you enter. For example, if you enter cluvfy, then CVU displays high-level generic usage text describing the stage and component syntax. The following is a list of context help commands:
cluvfy -help: CVU displays detailed CVU command information.
cluvfy -version: CVU displays the version of Oracle Clusterware.
cluvfy comp -list: CVU displays a list of components that can be checked, and brief descriptions of how the utility checks each component.
cluvfy comp -help: CVU displays detailed syntax for each of the valid component checks.
cluvfy stage -list: CVU displays a list of valid stages.
cluvfy stage -help: CVU displays detailed syntax for each of the valid stage checks.
You can also use the -help option with any CVU command. For example, cluvfy stage -pre nodeadd -help returns detailed information for that particular command.
If you enter an invalid CVU command, then CVU shows the correct usage for that command. For example, if you type cluvfy stage -pre dbinst, then CVU shows the correct syntax for the precheck commands for the dbinst stage. Enter the cluvfy -help command to see detailed CVU command information.