7. Complete the instructions in the Add Enclosures wizard until the control enclosure is added to the
system.
8. If only two control enclosures are in the system, you must set up a quorum disk or application outside
of the system. If the two control enclosures lose communication with each other, the quorum disk
prevents both I/O groups from going offline. For more information, see the "Conguring quorum" topic
in the IBM Knowledge Center.
Chapter 5. Conguring the system 75