Filter
Top Products
14-1
CHAPTER
14
CD-RW/DVD-RW Drive Unit
Replacement
This chapter explains the replacement procedures for a CD-RW/DVD-RW drive unit
(DVDU). It covers the following:
■ Section 14.1, “Overview of a CD-RW/DVD-RW Drive Unit” on page 14-1
■ Section 14.2, “Active Replacement” on page 14-6
■ Section 14.3, “Hot Replacement” on page 14-10
■ Section 14.4, “Cold Replacement” on page 14-12
There are three methods for replacing a CD-RW/DVD-RW drive unit: active replacement,
hot replacement, and cold replacement. For the definition of each type of method, see
Section 4.1, “Types of Replacement Procedures” on page 4-2.
14.1 Overview of a CD-RW/DVD-RW Drive Unit
This section provides an overview of CD-RW/DVD-RW drive units and describes their
mounting locations.
A CD-RW/DVD-RW drive unit is a device for an optical disk that can be used for
high-capacity data recording in digital form. One CD-RW/DVD-RW drive unit is mounted in
each of the M8000, M9000 (base cabinet), and M9000 server (expansion cabinet) model.
Active replacement and hot replacement can be performed on a CD-RW/DVD-RW drive
unit.
There are two types of CD-RW/DVD-RW drive units: tray-loading drive unit and
slot-loading drive unit. Each type of drive unit will connect only with its corresponding
media backplane.