SP Switch function (MAP 0620)

Table 1-7. SP Switch error conditions

 

 

 

 

Error #

Message/condition

Description and action

 

 

 

2

Initialized

Description: Initialization detected a wrapped port where a

(SPS)

 

processor node or dependent node was expected (this may

 

 

result from isolation procedures), or else a disconnected cable.

 

 

Action:

 

 

1. If this is an unexpected condition, check cabling against

 

 

the configuration file var/adm/SPlogs/css/out.top.

 

 

2. If the processor node or dependent node can be

 

 

reconnected, remove the wrap plug and connect the data

 

 

cable between the switch assembly and the processor node

 

 

or dependent node.

 

 

3. If the processor node or dependent node is to be

 

 

permanently removed, have the customer update the

 

 

switch topology.

 

 

4. Repeat ªStep 0620-001º on page 1-17 for next problem or

 

 

go to ªStep 0620-043º on page 1-36 to verify fix.

 

 

 

 

Link status: Operational

Description: Link status is operational.

1

 

Action: Repeat ªStep 0620-001º on page 1-17 for next problem

(SPS)

 

 

or go to ªStep 0620-043º on page 1-36 to verify fix.

 

 

 

 

 

0

Uninitialized

Description: Switch adapter has not been initialized. Processor

(SPS)

 

node may not recognize adapter due to hardware failure or bad

 

 

software configuration.

 

 

Action:

 

 

1. If there are any other errors in the

 

 

/var/adm/SPlogs/css/out.top file, address those errors first.

 

 

Note: If the problem is on all nodes in the frame, check for

 

 

any hardware problems with the SP Switch. Also check for

 

 

switch-to-switch problems on all jacks of the SP Switch.

 

 

2. If all the nodes are uninitialized except for the primary node,

 

 

verify that the primary node is connected to the correct port.

 

 

3. Have customer verify that the correct switch software is

 

 

installed and running on this node. rc.switch or

 

 

css_restart_node starts the

 

 

fault_service_Worm_RTG_SP daemon and the

 

 

fs_monitor daemon.

 

 

4. Log into processor node and enter:

 

 

lscfg grep css

 

 

5. If you get no result, try swapping in another switch

 

 

adapter. Repeat step 3. If you get a result, the problem is

 

 

probably resolved; repeat ªStep 0620-001º on page 1-17 for

 

 

next problem or go to ªStep 0620-043º on page 1-36 to

 

 

verify fix.

 

 

6. The problem is probably the SP Switch. Go to ªStep

 

 

0620-004º on page 1-21.

 

 

 

 

Device status: Device not

Description: Possible hardware problem.

−1

responding

Action: Go to ªStep 0620-004º on page 1-21.

(SPS)

 

Link status: Link as been removed

 

 

 

 

from network, other stage faulty

 

 

 

 

−2

Link status: Wrap plug is installed

Description: Initialization detected a wrap plug or cable rather

(SPS)

 

than the expected cabling.

 

 

Action: Repeat ªStep 0620-001º on page 1-17 for next problem

 

 

or go to ªStep 0620-043º on page 1-36 to verify fix.

 

 

 

Chapter 1. Maintenance Analysis Procedures (MAPs) 1-19

Page 38 Page 40
Page 39
Image 39
IBM RS/6000 SP manual SP Switch function MAP
Page 38 Page 40

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.
Top Page Image Contents