IBM eServer OpenPower 720, Technical Overview And Introduction

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Chapter 1. General description
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Figure 1-3 7311-D20 I/O drawer
I/O drawers and usable PCI slots
Only the 7311 Model D20 I/O drawer is supported on an OpenPower 720 system. Depending
on the system configuration, the maximum number of I/O drawers supported is different.
Table 1-6 summarizes the maximum number of I/O drawers supported and the total number
of PCI-X slots available.
Table 1-6 Maximum number of I/O drawers supported and total number of PCI slots
1.3.6 Hardware Management Console models
The Hardware Management Console (HMC) provides a set of functions that is necessary to
manage the OpenPower system when dynamic LPAR, Micro-Partitioning, Virtual Ethernet,
Virtual SCSI, inventory and remote microcode management, and remote power control
functions are needed. These functions include the handling of the partition profiles that define
the processor, memory, and I/O resources allocated to an individual partition. The HMC is
required when the Virtual I/O Server or the POWER Hypervisor features are ordered.
The 7310 Model CR3 or the 7310 Model C04 HMCs are specifically for POWER5
processor-based systems. However, an existing 7315 POWER4 processor-based systems
Note: The 7311 Model D20 I/O drawer is designed to be installed by an IBM service
representative.
OpenPower 720 Max number of I/O drawers Total number of PCI-X slots
Minimum configuration 4 28 + 5
Additional FC 1806 8 56 + 4 (excluding used slot)
I/O
Drawer
Service
Access
Adapters
SCSI disk locations and IDs
8 9 A B C D 8 9 A B C D
Operator panel
Front Rear
Power supply 2 Power supply 1
Rack indicator
PCI-X slots
RIO ports
SPCN ports
Reserved ports
1 2 3 4 5 6 7