To modify a system's attributes
Some attributes are internal to VCS and cannot be modified. For details on system attributes, see About the -modify option.
To display the value of a system's node ID as defined in the file
To freeze a system (prevent groups from being brought online or switched on the system)
Enables the freeze to be "remembered" when the cluster is rebooted. Note that the cluster configuration must be in read/write mode and must be saved to disk (dumped) to enable the freeze to be remembered.
To unfreeze a frozen system (reenable online and switch of service groups)