Appendix B
Components
B-9
B.4
I/O Unit
An I/O Unit (IOU) consists of an I/O board (IOB) with two types of control LSIs and a DDC
mounted, an HDD, and a PCI cassette. An IOU can be combined with a CMU to configure a
system (domain).
shows the IOU.
FIGURE B-4
I/O Unit (IOU)
The IOU has the following characteristics.
■
Active maintenance of IOUs is possible using the DR function.
■
Active replacement of a failed IOU during system operation is possible using the DR
function.
■
An IOU can be added or removed using the DR function during system operation.
Summary of Contents for SPARC Enterprise M8000
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Page 29: ...Chapter 1 Safety and Tools 1 7 Power Supply Unit PSU ...
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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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