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IBM RS/6000 SP manual Replacing the switch planar, Removing the 48 V dc circuit breaker assembly

Models: RS/6000 SP

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SP Switch2 service procedures

Replacing the switch planar

Attention: Replacement of the switch planar involves the replacement of the removed switch's externally accessible plug-ins into a new, partially populated switch planar-in-chassis assembly.

1.Remove all fan assemblies from the new switch planar assembly. v Refer to ªRemoving a fan assemblyº on page 4-2.

2.Install the components from the old switch into the new chassis assembly in the following order:

a.Replace the switch supervisor card.

v Refer to ªReplacing the switch supervisor cardº on page 4-6.

b.All interposer cards.

v Refer to ªReplacing an interposer cardº on page 4-7.

c.All power supplies.

v Refer to ªReplacing a power supplyº on page 4-3.

d.All fan assemblies.

v Refer to ªReplacing a fan assemblyº on page 4-2.

3.Replace the switch from service position.

v Refer to ªReplacing an SP Switch2 from service positionº on page 3-11.

4.Return to the procedure that directed you here.

Removing the 48 V dc circuit breaker assembly

Note: Refer to ªHandling static-sensitive devicesº on page 4-1.

1.Place the switch in service position.

v Refer to ªPlacing an SP Switch2 into service positionº on page 3-10.

2.Remove the switch supervisor card from slot J2.

v Refer to ªRemoving the switch supervisor cardº on page 4-5.

3.Remove the circuit breaker assembly mounting screws.

4.Loosen the captive screws on the chassis center top-cover and remove the cover.

5.Unplug the circuit breaker assembly power cable from J48V on the switch planar.

6.Grasp the circuit breaker bracket with one hand, apply finger pressure at its base from the empty J2 slot with the other hand, and remove the assembly by pulling it out of the chassis.

4-8RS/6000 SP: SP Switch2 Service Guide

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Page 78
Image 78
IBM RS/6000 SP manual Replacing the switch planar, Removing the 48 V dc circuit breaker assembly
Page 77 Page 79

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.