Cabling the Model D20 to a Model 6C4
The Model D20 subsystem can be installed in any location in a standard 19-inch EIA
rack. The cables that connect the subsystems allow some flexibility in drawer
placement. Up to two Model D20can be connected to a Model 6C4. Each I/O
subsystem is connected to the processor subsystem using a system power control
network (SPCN) cable loop and a remote I/O (RIO) cable loop. One SPCN cable loop is
needed to connect the I/O subsystems to one processor subsystem.
Before connecting the RIO-G and SPCN cables to the 7311, do the following:
1. Ensure that your Model 6C4 is running the latest level firmware. Refer to the
″Firmware Updates″ section of the ″Using the Service Processor″ chapter in the
pSeries 630 Model 6C4 and Model 6E4 Service Guide
, order number SA38-0604
for information on checking or upgrading the firmware level of your Model 6C4.
2. After ensuring that your firmware is at the latest level, turn the power off and
disconnect the Model 6C4 power cables from the power source.
3. Attach the RIO-G and SPCN cables. For cabling diagrams see “RIO (Remote Input
Output) Cabling” on page 27.
4. After connecting the RIO-G and SPCN cables from the 7311 to your system,
reconnect the system’s power cables to the power source and refer to “Starting the
System” on page 55.
5. Run system verification, refer to the ″Verifying the Hardware″ chapter located in the
pSeries 630 Model 6C4 and Model 6E4 Installation Guide
, order number
SA38-0604.
Your Model 6C4 is expandable when connected up to two 7311 I/O drawers. Each 7311
can contain up to 7 I/O PCI adapter slots, and two 6 pack disk drive (DASD) bays.
26 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
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