Table 3-4. SP Switch2 log files (continued)

Log File

Information Level

File Location

File Contents

 

 

 

 

topology.data

port

primary node

System error messages from the

 

 

 

distribution of the topology file to the

 

 

 

secondary nodes.

 

 

 

 

Note: The files ending in .out are produced by running the appropriate command to dump internal (in memory) trace information or dump data to a file. The complete package of output files will be found in /var/adm/SPlogs/css/.

css.snap file package names

Once the css.snap script creates the package of compressed files, the package file is given a name that varies according to the flags used with the css.snap command.

If the -a and -p flags are not used:

The file name is hostname.yymmddhhmmss.css.snap.tar.Z

If -a cssX (where X=0 or 1) is used but -p is not specified:

The file name is hostname.yymmddhhmmss.adapter0.css.snap.tar.Z

If -a cssX (where X=0 or 1) and -p p0 are both used:

The file name is hostname.yymmddhhmmss.adapter0.port0.css.snap.tar.Z

Hostname is the name of the node where the css.snap command was issued and yymmddhhmmss is the date and time that the information was collected.

Disk space handling

css.snap avoids flooding /var by following these rules:

vIf less than 10% of /var is free, css.snap exits.

vIf the CSS portion of /var is more than 30% of the total space in /var, css.snap erases old snap files until the CSS share sinks below 30%. If successful, css.snap proceeds. If not, it exits.

SP Switch2 supervisor self-test

The following procedures will help you perform self-test on the switch supervisor card. Upon completion of this test, return to the procedure that sent you here.

1.Detach supervisor harness from connector at back of the unit. Detaching the supervisor harness removes the 12 volt power from the supervisor card.

2.Reinsert the supervisor harness to perform the supervisor card self-test.

3.Check green and yellow LEDs on the switch supervisor card for the self-test conditions listed below.

3-6RS/6000 SP: SP Switch2 Service Guide

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IBM RS/6000 SP manual Css.snap file package names, Disk space handling, SP Switch2 supervisor self-test

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.