19-1
C H A PT E R
19
DDC Replacement
This chapter explains the replacement procedures for DC-to-DC Converters (DDCs). It
covers the following:
■
Section 19.1, “Overview of the DDC” on page 19-1
■
Section 19.2, “Active Replacement and Hot Replacement” on page 19-2
■
Section 19.3, “Cold Replacement” on page 19-7
There are three methods for replacing DDCs: active replacement, hot replacement and cold
replacement. For the definition of the replacement method, see
Replacement Procedures” on page 4-2
19.1
Overview of the DDC
This section provides an overview of the DDCs that are mounted on the back plane of the
M8000 server (BP_A), and describes their mounting locations.
A DDC supplies power to the back plane. DDCs are duplicated, and active maintenance can
be performed on them.
indicates the DDC mounting location in the M8000 server.
Summary of Contents for SPARC Enterprise M8000
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Page 15: ...Contents xv Index Index 1 ...
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Page 27: ...Chapter 1 Safety and Tools 1 5 M9000 Server Front View ...
Page 29: ...Chapter 1 Safety and Tools 1 7 Power Supply Unit PSU ...
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Page 205: ...Chapter 7 I O Unit IOU Replacement 7 13 FIGURE 7 8 Removing the IOU Front of M9000 1 1 2 3 ...
Page 227: ...Chapter 8 FAN Unit Replacement 8 11 FIGURE 8 9 Removing the FAN Unit Rear of M8000 1 2 ...
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Page 409: ...Chapter 20 Backplane Replacement 20 29 FIGURE 20 16 Removing the FANBP Rear of the M8000 ...
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Page 439: ...Chapter 23 Switch Backplane Replacement 23 7 FIGURE 23 4 Removing the SWBP Rear of the M8000 ...
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