IBM RS/6000 SP manual If the cabling does not match, correct the cabling

Models: RS/6000 SP

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Switch Function (MAP 0620)

Table 1-6. SP Switch2 error conditions (continued)

 

 

 

 

 

 

Error #

Device Message

Link Message

Description and Action

 

 

 

 

−4

Device has been

Link has been

Description: Switch network not wired as specified in switch

 

removed from

removed from

topology or problem with connection between switch and

 

network, faulty

network or miswire,

device.

 

 

faulty

Note: You may get this error number for a jack which could

 

 

 

connect to a node, but instead has a wrap plug. In this case,

 

 

 

this message is a warning only and can be ignored.

 

 

 

Action:

 

 

 

1.

Check the cable_miswire file in

 

 

 

 

var/adm/SPlogs/cssX/p0 (where X=0 or 1) and rewire

 

 

 

 

the cable as needed.

 

 

 

2.

If the cabling does not match, correct the cabling

 

 

 

 

problem, then go to step 5 below.

 

 

 

3.

If this occurs on all nodes of a frame, check for a

 

 

 

 

logical-to-physical frame number mismatch.

 

 

 

4.

If there is a mismatch, have the customer update the

 

 

 

 

configuration, or you can correct the cabling, as

 

 

 

 

appropriate.

 

 

 

5.

Go to ªStep 0620-004º on page 1-22.

 

 

 

 

−5

Device has been

Link has been

Description: Node was fenced from the network.

 

removed from

removed from

Action: run Eunfence for the node.

 

network by system

network by system

 

administrator

administrator

 

 

 

 

 

 

−6

Device has been

Link has been

Description: AUTOJOIN was not selected for node during

 

removed from

removed from

removal.

 

network, no

network, no

Action:

 

AUTOJOIN

AUTOJOIN

 

 

 

1.

If there is an obvious problem, like node powered off or

 

 

 

 

disconnected, fix that problem first. Then issue

 

 

 

 

Eunfence for this processor node.

 

 

 

2.

If problem was resolved, repeat ªStep 0620-001ºon

 

 

 

 

page 1-17for next problem or go to ªStep 0620-021ºon

 

 

 

 

page 1-27to verify fix.

 

 

 

3.

If problem was not resolved, go to ªStep 0620-004ºon

 

 

 

 

page 1-22.

 

 

 

 

−7

Device has been

Link has been

Description: Possible hardware problem.

 

removed from

removed from

Action: Go to ªStep 0620-004º on page 1-22.

 

network for not

network, fenced

 

responding

 

 

 

 

 

 

 

−8

Device has been

Link has been

Description: Initialization of this link detected a different

 

removed from

removed from

switch node number than the one expected.

 

network because

network, probable

Action:

 

of a miswire

miswire

 

 

 

1.

Check the cable_miswire file in

 

 

 

 

var/adm/SPlogs/cssX/p0 (where X=0 or 1) and rewire

 

 

 

 

the cable as needed.

 

 

 

2.

If the cabling does not match, correct the cabling

 

 

 

 

problem, then go to step 5.

 

 

 

3.

If this occurs on all nodes of a frame, check for a

 

 

 

 

logical-to-physical frame number mismatch.

 

 

 

4.

Have the customer update the configuration, or you can

 

 

 

 

correct the cabling, as appropriate.

 

 

 

5.

Repeat ªStep 0620-001º on page 1-17 for next problem

 

 

 

 

or go to ªStep 0620-021º on page 1-27 to verify fix.

 

 

 

 

 

Chapter 1. Maintenance Analysis Procedures (MAPs) 1-21

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IBM RS/6000 SP manual If the cabling does not match, correct the cabling

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.