Switch power (MAP 0610)

Step 0610-004

The green switch supervisor LED is Off.

1.Make certain that the switch power cable is properly connected to jack J1 on the switch and on the

SEPBU.

2.Place the inline switch on the switch power cable into the On (`1') position if it is not already in that position.

3.Place the switch circuit breaker into the On (`1') position if it is not already in that position.

4.Does the switch circuit breaker trip to the Off (`0') position?

vIf yes, go to ªStep 0610-005º.

vIf no, go to ªStep 0610-006º.

Step 0610-005

The switch circuit breaker went (tripped) to the Off (`0') position.

1.One at a time, remove each fan/power supply pair.

v Refer to ªRemoving a fan assemblyº on page 4-2 and ªRemoving a power supplyº on page 4-3.

2.After each fan/power supply pair is removed, check to see if the circuit breaker trips.

3.Does the circuit breaker still trip?

v If yes, go to ªStep 0610-012º on page 1-15. v If no, go to ªStep 0610-009º on page 1-15.

Step 0610-006

The switch circuit breaker stayed in the On (`1') position.

1.Check the status of the green switch supervisor LED.

2.Is the green LED lit?

v If the green LED is off, go to ªStep 0610-007º.

vIf the green LED is on:

a.You have resolved the switch assembly problem.

b.Go to Switch function (MAP 0620) and refer to ªStep 0620-021º on page 1-27 to return the switch to the active configuration.

Step 0610-007

The switch circuit breaker is in the On (`1') position and the green switch supervisor LED is off.

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

2.Did the green switch supervisor LED light during the supervisor self-test?

vIf yes, go to ªStep 0610-008º.

vIf the green LED remained off, go to ªStep 0610-019º on page 1-16.

Step 0610-008

The green switch supervisor LED lights during the supervisor self-test, but not when the switch circuit breaker is in the On (`1') position.

1.Place the inline switch on the switch power cable in the Off (`0') position.

2.Remove the power cable from jack J1 at the rear of the switch.

3.Return the inline switch on the switch power cable to the On (`1') position.

4.Check for 48 volts (dc) across the two power pins on the disconnected power cable.

5.Were you able to measure 48 V on the power cable? v If yes, go to ªStep 0610-019º on page 1-16.

vIf no, you have a problem with 48 V dc power distribution.

± Go to ″Open in 48 V dc distribution (MAP 0560)″ in RS/6000 SP: System Service Guide.

1-14RS/6000 SP: SP Switch2 Service Guide

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IBM RS/6000 SP manual Switch power MAP
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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.
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