Chapter 1. Reference Information
This chapter provides reference information for the Model D10 and Model D20 I/O
subsystems.
pSeries 7311 Model D10 Overview
The Model D10 is a 19-inch, rack-mountable I/O subsystem that is attached to a
processor subsystem drawer to extend the system’s capacity for I/O adapters. The I/O
drawer includes redundant concurrently maintainable power and cooling.
Five PCI-X slots and one PCI slot are available for PCI adapters. PCI adapters are
installed through the rear of the I/O subsystem using PCI adapter cassettes. Because
the PCI slots support hot-pluggable adapters, the I/O subsystem can have adapters
installed without turning off power or removing covers. The Model D10 is 4 EIA units
high and two Model D10s can be installed side-by-side in a 19-inch rack enclosure.
Model D10 I/O Subsystem Features
The following figure shows the I/O subsystem from the front.
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1 Cooling Fan 3 Power Supply 1, Power Supply
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2 Power cord channel 4 Power cord receptacles
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