Table 3-1. Service procedure tools

Utility

Runs on

Description

 

Directory

 

 

 

 

 

fault_service_Worm_RTG_CS

All nodes

Monitors the switch for faults. It

 

/usr/lpp/ssp/css

 

 

restarts the switch if a fault is

 

 

 

 

detected.

 

 

 

 

 

 

 

css.snap

All nodes,

Collects log, trace, and dump

 

/usr/lpp/ssp/css

 

CWS

information created by SP Switch2

 

 

 

 

support code (device driver, worm,

 

 

 

 

fault-service daemon, diagnostics)

 

 

 

 

 

 

 

rc.switch

All nodes

Starts the daemons and IP

 

/usr/lpp/ssp/css

 

 

configuration tools.

 

Note: When working with a

 

 

 

 

two-plane SP Switch2

 

 

 

 

system, add the adapter

 

 

 

 

name to the command, as

 

 

 

 

follows:

 

 

 

 

/usr/lpp/ssp/css/rc.switch

 

 

 

 

-a<adapter_name>

 

 

 

 

 

Estart

Primary or

Tunes the switch and puts in into run

 

/usr/lpp/ssp/bin

 

Control

phase. Also, kicks off the route table

 

 

 

Node

generator and distributes the routes

 

 

 

 

to the nodes, by placing them in the

 

 

 

 

etc/SP directory on the control node.

 

 

 

 

 

 

 

Eprimary

All nodes

Sets a node as the primary node.

 

/usr/lpp/ssp/bin

 

 

 

 

 

Etopology

All nodes

Stores switch topology information in

 

/usr/lpp/ssp/bin

 

 

the System Data Repository for a

 

 

 

 

node or a series of nodes. Also

 

 

 

 

retrieves a topology files out of the

 

 

 

 

SDR.

 

 

 

 

 

 

 

ifconfig

All nodes

This sets up the IP interface to the

 

NA

 

 

switch.

 

(AIX command)

 

 

 

 

 

 

 

 

 

Table 3-2. Setup output files

 

 

 

 

 

 

 

 

File

Location

Description

Directory

 

 

 

 

rc.switch.log

All nodes

Logs all information on the last run

/var/adm/SPlogs/css

 

 

of rc.switch. It will indicate if this is

 

 

 

 

a primary or secondary node, the

 

 

 

 

associated switch chip information,

 

 

 

 

and IP address information.

 

 

 

 

 

 

rc.switch.log.previous

All nodes

A copy the previous run of

/var/adm/SPlogs/css

 

 

rc.switch.

 

 

 

 

 

 

expected.top.xnsb.yisb.0

All nodes

Used by rc.switch to more easily

/etc/SP/

 

 

parse out chip connection

 

 

 

 

information.

 

 

 

 

Where:

 

 

 

 

x = the number of the node switch

 

 

 

 

board

 

 

 

 

y = the number of the intermediate

 

 

 

 

switch board

 

 

 

 

 

 

fs_daemon_print.file

All nodes

A log of the daemon

/var/adm/SPlogs/css0/p0

 

 

 

 

 

3-2RS/6000 SP: SP Switch2 Service Guide

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IBM RS/6000 SP Utility Runs on Description Directory FaultserviceWormRTGCS, Usr/lpp/ssp/css, Css.snap, Rc.switch, Estart

RS/6000 SP specifications

The IBM RS/6000 SP (Scalable Power) is a high-performance computing system that was developed in the early 1990s and has since become a significant player in the realm of supercomputing and enterprise solutions. Designed primarily for scientific, engineering, and complex data analysis tasks, the RS/6000 SP provides powerful processing capabilities, enhanced scalability, and features to support demanding applications.

One of the key characteristics of the RS/6000 SP is its modular architecture, which allows for the addition of multiple nodes. Each node is based on IBM's Power architecture, leveraging the RISC (Reduced Instruction Set Computing) design to achieve high throughput and efficiency. The system can support configurations ranging from a few nodes to hundreds, enabling organizations to scale their computational power as needed based on workload requirements.

The RS/6000 SP employs advanced interconnect technologies, most notably the SP Switch, which ensures high-speed communication between nodes. This interconnect allows for seamless data transfer, ensuring that the system can handle large datasets and complex computations without bottlenecks. The SP's ability to deliver concurrent processing capabilities makes it ideal for parallel computing tasks, including simulations, modeling, and large-scale computations.

In terms of software, the RS/6000 SP was equipped with AIX, IBM's version of the UNIX operating system, which provides a stable and secure environment for enterprise applications. Furthermore, the system supports a vast array of programming languages and tools, including Fortran, C, and C++, along with libraries and frameworks designed for high-performance computing. This compatibility allows developers to optimize their applications to fully utilize the underlying hardware.

Another notable feature of the RS/6000 SP is its extensive support for various workloads, including database management, multi-user applications, and graphical processing. The system was equipped with high-performance graphics capabilities, making it suitable for tasks that require intensive visualization, such as computer-aided design (CAD) and scientific visualization.

Overall, the IBM RS/6000 SP has solidified its role in the high-performance computing landscape, combining advanced technologies, robust scalability, and flexibility to meet the unique demands of research and enterprise environments. Its legacy continues to influence modern computing architectures, embodying IBM’s commitment to innovation and performance in the pursuit of complex problem-solving capabilities.