8 IBM Eserver Certification Study Guide: Cluster 1600 Managed by PSSP
2.1 Key concepts you should study
The topics covered in this section provide a good preparation toward the
RS/6000 SP and IBM eServer Cluster 1600 certification exam. Before taking the
exam, you should understand the following key concepts:
The hardware components that comprise an SP system.
The types and models of nodes, frames, and switches.
Hardware and software requirements for the control workstation.
Levels of PSSP and AIX supported by nodes and control workstations
(especially in mixed environments).
2.2 Hardware
The basic components of the IBM eServer Cluster 1600 and RS/6000 SP are:
The frame with its integral power subsystems
External and internal processor nodes
Optional dependent nodes that serve a specific function, such as high-speed
network connections
Optional SP Switch, Switch-8, and SP Switch2 to expand your system
A control workstation (a high-availability option is also available) and
Hardware Management Console (HMC)
Network connectivity adapters and peripheral devices, such as tape and disk
drives
These components connect to your existing computer network through a local
area network (LAN), thus making the RS/6000 SP system accessible from any
network-attached workstation.
Figure 2-1 on page 9 shows a sample of IBM eServer Cluster 1600 components.
Chapter 2. Validate hardware and software configuration 9
Figure 2-1 Sample of Cluster 1600 managed with PSSP
The building block of RS/6000 SP is the frame. There are two sizes: The tall
frame (1.93 meters high) and the short frame (1.25 meters high). RS/6000 SP
internal nodes are mounted in either a tall or short frame. A tall frame has eight
drawers, while a short frame has four drawers. Each drawer is further divided
into two slots. A thin node occupies one slot; a wide node occupies one drawer
(two slots), and a high node occupies two drawers (four slots). An internal power
supply is included with each frame. Frames get equipped with optional processor
nodes and switches.
There are five current types of frames:
The tall model frame
The short model frame
The tall expansion frame
The short expansion frame
The SP Switch frame
RS/6000 SP rack-mounted servers
pSeries 690
HMC
RS/6000 or pSeries
control workstation
running PSSP cluster
management
software
pSeries 680
pSeries 660
Trusted Administrative Ethernet
SP switch network
RS-232
RS-232
RS-232
IBM
IBM
RS-232
RS-232
10 IBM Eserver Certification Study Guide: Cluster 1600 Managed by PSSP
2.2.1 Overview of the available frames
For the Cluster 1600, RS/6000 SP internal nodes and SP Switch/SP Switch2
several frames are available to fit the needs of the desired configuration. A quick
summary shows the available frames and their description:
7040-T00 19-inch system rack containing p630 (7028-6C4) or p660
(7026-6xx) servers or I/O drawers
7040-T42 19-inch system rack containing p630 (#7028) or p660 (#7026)
servers or I/O drawers
7040-W42 24-inch system frame containing p655 servers (#7039-651) or I/O
drawers
9076-550 SP frame containing nodes or nodes and switch, including
expansion frame (F/C 1550)
9076-55H SP frame containing nodes or nodes and switch (administrative
field conversion of legacy 79-inch model frame), including expansion frame
(F/C 1550)
9076-555 SP Cluster Switch Frame, which can contain up to one SP Switch
9076-556 SP Switch2 Frame, which can contain up to eight SP Switch2s
9076-557 SP Switch Model for 19-inch rack, which can contain up to one SP
Switch
9076-558 SP Switch2 Model for 19-inch rack, which can contain up to two SP
Switch2s
Model 550 - a 1.93m frame
With eight empty node drawers for either eight wide nodes, 16 thin nodes, or
four high nodes
A 10.5 kW, three-phase SEPBU power subsystem
Model 555 - a 1.93m SP Switch frame
This frame provides switch ports for Cluster 1600 systems of two to 16 logical
nodes. For configurations of 17 to 32 nodes, you need to add an SP expansion
frame (F/C 1555) containing one SP Switch.
With one SP Switch node switch board, F/C 4011
A 10.5 kW, three-phase SEPBU power subsystem
Model 556 - a 2.01m SP Switch2 frame
The Model 556 and F/C 2034 share the 79 in./2.01m frame and covers of the
pSeries 690.This frame provides node switch board (NSB) ports for Cluster 1600
and SP processor nodes for both single and two-plane switch configurations

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