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25-1
CHAPTER
25
Addition, Deletion, and Upgrade of
FRU
This chapter firstly explains the procedures for adding the CPU/memory board unit (CMU),
DIMM, I/O unit (IOU), hard disk drive (HDD), PCI card, tape drive unit (TAPEU), CPU
module, fan unit (FAN) and power supply unit (PSU) to the server. Secondly, this chapter
explains the procedures for deleting CMU, IOU and PCI card from the server.
This chapter also explains the procedures of upgrading CPU, CMU and IOU.
■ Section 25.1, “Addition” on page 25-1
■ Section 25.2, “Deletion” on page 25-4
■ Section 25.3, “Upgrade of CPU, CMU, IOU, and IOUA” on page 25-7
25.1 Addition
The procedure of addition is intended for the following FRUs:
■ CPU/memory board unit (CMU)
■ DIMM
■ I/O unit (IOU)
■ Hard Disk Drive (HDD)
■ PCI card (PCI)
■ Tape Drive Unit (TAPEU)
■ CPU module (CPUM)
■ Fan unit
■ PSU
The FRUs allow for active addition, and cold addition, as well as regular replacement. Based
on certain conditions, you may need to update the software and firmware, as well as stop the
domain. For details, see Section 25.3, “Upgrade of CPU, CMU, IOU, and IOUA” on
page 25-7.