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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 14-5
■ Section 14.3, “Hot Replacement” on page 14-9
■ Section 14.4, “Cold Replacement” on page 14-11
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 Chapter 4.
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 SPARC Enterprise M9000
server (expansion cabinet) model. Active replacement and hot replacement can be
performed on a CD-RW/DVD-RW drive unit.
FIGURE 14-1, FIGURE 14-2, and FIGURE 14-3 show the mounting location of the
CD-RW/DVD-RW drive unit.