An administrator is ordering a new Power 550. They will mirror rootvg and are concerned about single points of failure. <br /> Which of the following features should be ordered()
A、Dual I/O planar, dual disk drives, dual SCSI adapters
B、Dual disk drive enclosures, dual disk drives, extra media bay
C、Dual disk drive enclosures, dual disk drives and dual SCSI adapters
D、Dual I/O planar, extra media bay, dual disk drives