SP Switch environment (MAP 0600)

Step 0600-004

Perspectives indicated a shutdown condition and Table 1-2 on page 1-5directed you to this step.

1.One or more of the following conditions exist: v Voltage out of range: +5 V ªshutdownP5º

vVoltage out of range: +12 V ªshutdownP12º

vVoltage out of range: −5 V ªshutdownN5º

2.Have the customer remove the SP Switch from the active configuration and power off the SP Switch.

3.Put the switch into service position. Refer to ªService position proceduresº on page 3-9.

4.Check the following hardware items:

vCable conditions at switch supervisor card S00-SP-J102

vCable conditions at power supply S00-PC-P4 and S00-PC-P6.

vCable conditions of wires, especially the inner chassis cable.

5.Leave the cable disconnected at the switch power card.

6.Does the switch supervisor control cable appear to be okay?

vIf yes, go to ªStep 0600-005º.

vIf the switch supervisor control cable (S00-SP-P102) appears to have a problem, go to ªStep 0600-011º on page 1-7.Refer to Priority 4 and replace the cable.

Step 0600-005

After placing the switch into the service position, you performed some basic inspections and found that the switch supervisor control cable (S00-SP-P102) appears to be okay.

1.Disconnect S00-PC-P4 and S00-PC-P4 at the power supply.

2.Using a digital multimeter, measure resistance between the appropriate pins.

3.Compare results with values in Table 1-3:

Table 1-3. Switch connector resistance values

 

Measure from

To GND

Acceptable range

Voltage

(positive lead)

(negative lead)

(in

ohms)

 

 

 

 

+5 V

Pin 1

Pin 2 (black)

1K - 5M

 

 

 

 

+12 V

Pin 3

Pin 2 (black)

1K - 5M

 

 

 

 

 

 

 

 

 

−5 V

Pin

5

Pin

2

(black)

2

-

20

 

Pin

7

Pin

2

(black)

2

-

20

 

 

 

 

 

 

 

 

 

4. Is the measured resistance in the acceptable range?

vIf yes, go to ªStep 0600-009º on page 1-7.

vIf no, go to ªStep 0600-006º.

Step 0600-006

The resistance value you measured in Table 1-3was not within an acceptable range.

1.Replace the inner chassis cable.

2.Repeat resistance measurement from ªStep 0600-005º.

3.Is the measured resistance in the acceptable range?

vIf yes, go to ªStep 0600-017º on page 1-10 to verify fix.

vIf no, go to ªStep 0600-007º.

Step 0600-007

You disconnected S00-CL-P5 at the switch clock card but the measured resistance was still outside the acceptable range.

1.Replace the front chassis cable.

2.Repeat resistance measurement from ªStep 0600-005º.

1-6RS/6000 SP: SP Switch Service Guide

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Image 26
IBM RS/6000 SP manual Switch connector resistance values
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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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