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15-1
CHAPTER
15
Tape Drive Unit Replacement
This chapter explains the replacement procedure for the tape drive unit (TAPEU). It covers
the following:
■ Section 15.1, “Overview of the Tape Drive Unit” on page 15-1
■ Section 15.2, “Active Replacement” on page 15-5
■ Section 15.3, “Hot Replacement” on page 15-9
■ Section 15.4, “Cold Replacement” on page 15-11
There are three methods for replacing a tape 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.
Note – Contact your sales representative for tape drive unit options on M8000/M9000
servers.
15.1 Overview of the Tape Drive Unit
This section provides an overview of tape drive units and describes their mounting locations.
Since the tape was originally called a digital audio tape, it is sometimes referred to as a DAT.
Tape drive unit can back up a large amount of data using digital audio tape. One tape drive
unit can be mounted in each cabinet. Active replacement and hot replacement can be
performed on a tape drive unit.
FIGURE 15-1, FIGURE 15-2, and FIGURE 15-3 show the mounting locations of tape drive unit in
the cabinets of the M8000 server, the M9000 server (base cabinet), and the M9000 server
(with the expansion cabinet), respectively.