If the "splex" (OS user used to install Shareplex) is assigned to the "dba" group, "splex" user assumes the "sysdba" privilege from "dba" group and it is not acceptable at the Database level for security reasons.
Need a way to remove the "dba" group from "splex" OS user.
$vi /etc/group
Change the "dba" name to "ointall" and create a new group with the name "dba". Assign the new "dba" group to "oracle" OS user.