Enabling Communication Between Systems

When VCS is installed using the installvcs utility, communication between systems is required to install and configure the entire cluster at one time. Permissions must be granted for the system on which installvcs is run to issue ssh or remsh commands as root on all systems in the cluster. If ssh is used to communicate between systems, it must be configured in a way such that it operates without requests for passwords or passphrases.

If system communication is not possible between systems using ssh or remsh, refer to Using installvcs in a Secure Environment or Manually Installing VCS.