Creating the OSRACDBA Group for Database Installations

You must designate a group as the OSRACDBA group during database installation. Members of this group are granted the SYSRAC privileges to perform day–to–day administration of Oracle databases on an Oracle RAC cluster.

Create the OSRACDBA group using the groups name racdba unless a group with that name already exists:
# /usr/sbin/groupadd -g 54330 racdba