The following files are required by the VCS communication services for Group Membership and Atomic Broadcast (GAB).
After installation, the file
/etc/gabtab contains a
gabconfig(1M) command that configures the GAB driver for use.
/etc/gabtab contains a line that resembles:
/sbin/gabconfig -c -n N
-c option configures the driver for use and
-n N specifies that the cluster will not be formed until at least N systems are ready to form the cluster. N is the number of systems in the cluster.