Switch Description and Problem Determination (MAP 0590)

Note: In a frame with processor nodes, entries for the switch will refer to ªnode17º or ªslot17º. In a multi-switch frame, switches will be listed as even slot addresses.

Figure 1-2. SP Switch2 Wrap Plugs

Notes:

1.SP Switch2 advanced diagnostics use the 8.75 meter data cable provided by the SPS feature bill of material.

2.Advanced cable wrap tests will not run successfully for 10-, 15-, and 20-meter SPS data cables. If these data cables are used, change the suspected cable.

3.Refer to ªSP Switch2 assembly (view 1)º on page 5-2 in Chapter 5, ªParts catalogº for the wrap plug part numbers.

Table 1-1. Switch Problem Diagnostics

Priority

Message or condition

Action

 

 

 

1

Supervisor communication problem

Go to ªSwitch supervisor communications

(1 of 4)

v Yellow switch supervisor LED on, green LED off

(MAP 0595)º on page 1-6.

v Perspectives switch pane indicates problem with

 

 

48 volts but other voltages are OK

 

 

v Perspectives switch pane shows several gray

 

 

icons with question marks

 

 

v Fans are running but green LEDs on all

 

 

interposer cards and all power supplies are off

 

 

Note: Power supply LEDs are viewable through

 

 

the fan assemblies.

 

 

Note: For information on opening a Perspectives

 

 

switch pane see: ªOpening a switch paneº on

 

 

page 3-7.

 

 

 

 

Chapter 1. Maintenance Analysis Procedures (MAPs) 1-5

Page 23
Image 23
IBM RS/6000 SP manual SP Switch2 Wrap Plugs, Priority Message or condition Action

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.