You have a disk enclosure with 14 x 72GB Wide-Ultra2 SCSI hard disks connected. You add an additional disk enclosure with 8 x 146GB Hot-Pluggable Ultra320 SCSI hard disks to an array controller. To optimize peformance, you move 3 x 72GB Ultra2 hard disks to a new enclosure to balance the number of hard disks across two channels.
The disks in the new enclosure are not working correctly and the disks are not seen in the array controller management tool. There are no conflicting device IDs and termination is correct. All enclosures were pwoered on before powering up the server.
What are the possible causes of the problem? (Select two)
A. Ultra320 SCSI devices cannot be mixed with Wide-Ultra2 SCSI devices.
B. You must update the SCSI Controller BIOS to the latest supported revision.
C. The cables and/or connectors are faulty or not properly seated.
D. The number of disks exceeds the capability of the controller.
E. The SCSI I/O module on the disk enclosure is faulty.
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