Switch supervisor communications MAP

		Switch supervisor communications (MAP 0595)
Table 1-2. SP Switch2 supervisor LED indications		(continued)

Green LED	Yellow LED	Indication

		Defective supervisor card (replace card)
Flashing	Flashing	Note: For this indication, the green and yellow LEDs are flashing
		alternately.

Step 0595-001

Perspectives indicates that a power problem exists and the yellow LED on the SP Switch2 supervisor is On and it is not flashing.

1.Perform the ªSP Switch2 supervisor self-testº on page 3-6.

v While the test is running, compare the LED conditions on the supervisor with those listed in ªSelf-test Conditionsº on page 3-7.

2.Did the supervisor pass the self-test? v If yes, go to ªStep 0595-002º.

v If no, go to ªStep 0595-003º.

Step 0595-002

The supervisor passed the self-test. This indicates that the self-test may have reset the supervisor processor and you need to determine if the problem has been cleared.

1.Refresh Perspectives.

2.Power on the switch.

3.Does Perspectives indicate that the original problem is still present or that a new problem is occurring?

vIf yes, return to the Start MAP (0100) in the RS/6000 SP: System Service Guide.

vIf no, go to the End of call procedures (MAP 0650) in the RS/6000 SP: System Service Guide.

Step 0595-003

The SP Switch2 supervisor failed the self-test therefore, you need to analyze the LED conditions you observed during the self-test.

1. Did the green and yellow supervisor LEDs light?

vIf yes, go to ªStep 0595-005º.

vIf no, go to ªStep 0595-004º.

Step 0595-004

Both green and yellow supervisor LEDs did not light during the self-test.

1.Check the supervisor LEDs on the nodes connected to the same supervisor cable as the switch.

2.Are any other supervisor LEDs lit? v If yes:

a.Replace the switch supervisor.

b.Go to ªStep 0595-008º on page 1-8.

vIf no, go to the Start MAP (0100) in the RS/6000 SP: System Service Guide and troubleshoot the supervisory bus system.

Step 0595-005

The switch supervisor failed the self-test. However, during the self-test the green and yellow LEDs on the supervisor did light.

1.Did the yellow LED flash the wrong address or was it on steady after the self-test completed? v If the yellow LED flashed the wrong address, go to ªStep 0595-006º on page 1-8.

v If the yellow LED was on steady after the self-test, go to ªStep 0595-007º on page 1-8.

Chapter 1. Maintenance Analysis Procedures (MAPs) 1-7

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.

IBM RS/6000 SP manual Switch supervisor communications MAP

Models: RS/6000 SP