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25-1
CHAPTER
25
Addition and Deletion of CMU,
DIMM, IOU, HDD, PCI Cards and
TAPEU
This chapter explains the procedures for installing new FRUs and removing existing
FRUs. These procedures are called addition and deletion.
The following topics are covered in this chapter.
■ Section 25.1, “Addition” on page 25-2
■ Section 25.2, “Deletion” on page 25-4
All FRUs can be replaced, as shown in the chapters preceding , but addition and
deletion are limited to the following FRUs.
Since the details for adding and deleting FRUs are the same as some details for
replacing FRUs, this chapter explains only the main points. For more details, refer to
the appropriate chapter on FRU replacement.
These FRUs can be added:
■ CPU/Memory board unit (CMU)
■ DIMM
■ I/O unit (IOU)
■ Hard Disk Drive (HDD)
■ PCI card (PCI)
■ Tape Drive Unit (TAPEU)
These FRUs can be deleted:
■ CPU/Memory board unit (CMU)
■ I/O unit (IOU)
■ PCI card (PCI)