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13-1
CHAPTER
13
PCI Slot Device Replacement
This chapter explains the replacement procedures for devices that are mounted in
the PCI slots of an IOU. It covers the following:
■ Section 13.1, “Overview of PCI Slot Devices” on page 13-1
■ Section 13.2, “Active Replacement” on page 13-3
■ Section 13.3, “Hot Replacement” on page 13-17
■ Section 13.4, “Cold Replacement” on page 13-20
There are three methods for replacing PCI slot devices: active replacement, hot
replacement and cold replacement. For the definition of each type of method, see
Chapter 4
13.1 Overview of PCI Slot Devices
This section provides an overview of devices that are inserted in the PCI slots of an
IOU, and describes their mounting locations.
Each IOU has eight PCI slots. Every PCI slot is equipped with a PCI cassette
(PCICS). Any of the devices below can be mounted in a PCI cassette, and the system
functions can be expanded with these devices.
■ PCI card
The cards that can be mounted are PCI-Express short cards.
The PHP function enables active maintenance of PCI cards.
■ IOU onboard device card (IOUA)
A card required for mounting a built in CD-RW/DVD-RW drive unit or tape
drive unit
The PHP function does not enable active maintenance of IOUAs. Perform either
hot maintenance or cold maintenance.