IBM RS/6000 SP manual Using the css.snap script

Page 61

Table 3-2. Setup output files (continued)

File

Location

Description

Directory

 

 

 

 

css.snap.log

All nodes

Log files created by the switch

/var/adm/SPlogs/css

 

 

support code

 

 

 

 

 

Table 3-3. Tuning output files

 

 

 

 

 

 

 

File

Location

Description

Directory

 

 

 

 

daemon.stdout

All nodes

Keeps a detailed account of the

/var/adm/SPlogs/css

 

 

tuning process initiated by the Estart

 

 

 

command. It includes data from

 

 

 

every tuning operation since the

 

 

 

current daemon on the primary node

 

 

 

was initiated.

 

 

 

 

 

topology.data

Primary

A record of the primary node, how

/var/adm/SPlogs/css

 

 

many nodes were initialized, and the

 

 

 

links between them.

 

 

 

 

 

daemon.stderr

All nodes

A record of which nodes were not

/var/adm/SPlogs/css

 

 

initialized.

 

 

 

 

 

out.top

Primary

Reports errors from the last tuning

/var/adm/SPlogs/css0/p0

 

 

procedure. It begins as a copy of the

 

 

 

topology file and errors are

 

 

 

indicated to the right of each entry.

 

 

 

 

 

out.top.old

Primary

A copy of out.top from the previous

/var/adm/SPlogs/css0/p0

 

 

run.

 

 

 

 

 

router.log

Primary

The router log file generated by the

/var/adm/SPlogs/css0/p0

 

 

route table generator after

 

 

 

initialization.

 

 

 

 

 

router.log.old

Primary

A copy of router.log from a previous

/var/adm/SPlogs/css0/p0

 

 

run.

 

 

 

 

 

Using the css.snap script

The css.snap script is located in the /usr/lpp/ssp/css directory. When the script runs, it collects log, trace, and dump files created by SP Switch2 support code (device driver, worm, fault-service daemon, and diagnostics) into a single compressed package.

Attention: css.snap uses a number of undocumented utilities to collect information. Some of these can be destructive when used on a running system. After using css.snap to collect diagnostic information, it's best to run /usr/lpp/ssp/css/rc.switch in order to reset and reload the switch adapter and eliminate residual effects of these utilities. This procedure should be used only under the direction of the IBM Support Center.

When working with a two-plane SP Switch2 system, add the adapter name to the command, as follows: dsh -a /usr/lpp/ssp/css/rc.switch-a<adapter_name>

The css.snap script is called whenever a serious error is detected by the switch support code. You can direct the system to create a snapshot by loging into the desired node and manually issuing the command: /usr/lpp/ssp/css/css.snap with any of the optional flags: [-c -n] [-s] [-a cssX (where X=0 or 1)] [-p p0] where:

v-cFlushes the adapter cache and prints the result. This is the default.

Chapter 3. Service procedures 3-3

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Contents IBM Page IBM Fourth edition April Contents FRU removals and replacements Figures Vi RS/6000 SP SP Switch2 Service Guide Tables Viii RS/6000 SP SP Switch2 Service Guide Safety notices in English Safety and environmental noticesRS/6000 SP SP Switch2 Service Guide SPSFD017 Xii RS/6000 SP SP Switch2 Service Guide Environmental notices Product recycling and disposal Laser safety informationXiv RS/6000 SP SP Switch2 Service Guide Who should use this book About this bookRelated information How to send your comments How to use this bookUsers responsibilities Switch MAPs Maintenance Analysis Procedures MAPsSwitch description and problem determination MAP Purpose of this MAPSwitch-to-Switch Switch Connection Types Standard NodeSwitch Assembly Description SP Switch2 SP Switch2 Assembly High-Level Diagram Yellow Environment LED Green Power LEDFlashing Errpt -a -N sphwlog pg Errpt -a -N css0 Errpt -a -N WormPriority Message or condition Action SP Switch2 Wrap PlugsGreen LED Yellow LED Indication Switch supervisor communications MAPTogether Switch supervisor communications MAP Switch supervisor communications MAP Condition Action Switch environment MAPPriority Component Action SP Switch2 Chassis Assembly Power supply failure diagnostics Switch power MAP Switch power MAP Step 16RS/6000 SP SP Switch2 Service Guide Estart Switch function MAPSplstdata -n pg EprimaryPg /var/adm/SPlogs/css0/p0/out.top Notes Switch Function MAP Starts the faultserviceWormRTGCS daemon Error # Device Message Link Message Description and ActionVar/adm/SPlogs/css0/p0/out.top file on the primary If the cabling does not match, correct the cabling E02-N05 E02-S17-BH-J18E06-S02-BH-J3 Priority Condition ActionStep Number Service RequestFailing Component Description Priority Failing Component Action SRN26RS/6000 SP SP Switch2 Service Guide Dsh -w nodelist /usr/lpp/ssp/css/rc.switch Dsh -a /usr/lpp/ssp/css/rc.switch Naming standard for RS/6000 SP components LocationsFormat structure Major assembly Location diagrams of the RS/6000 SP componentsFigure notes Front and rear views of RS/6000 SP frame2shows a front view of the RS/6000 SP multi-switch frame Frame FRA Frame locationsExample E01-FRA-G1 Connector details Switch assembly locationsCable routing Locations Cable routing in a multi-switch frame F/C Cable Part Plug from Plug to Number Location Switch data cables12RS/6000 SP SP Switch2 Service Guide Personal ESD requirements Service proceduresTools and files overview Rc.switch Utility Runs on Description Directory FaultserviceWormRTGCSUsr/lpp/ssp/css/rc.switch IfconfigUsing the css.snap script Var/adm/SPlogs/cssX/p0 where X=0 or Var/adm/SPlogs/cssX where X=0 orCss.snap file structure Var/adm/SPlogs/cssMost recent css.snaps readregs Most recent css.snaps ifcldumpMost recent css.snaps splstdata Css.snap file package names SP Switch2 supervisor self-testDisk space handling If the -a and -p flags are not usedOpening a switch pane Switch supervisor status verification using PerspectivesChecking switch status Self-test ConditionsBase code verification Updating the SP Switch2 supervisor codeRemoving an SP Switch2 from the active configuration Removing and restoring switch resourcesRestoring an SP Switch2 to the active configuration Fencing nodes Efence of primary and primary backup nodesResetting the clock and bootlist after servicing a node Replacing an SP Switch2 from service positionRunning diagnostics on a switch port Handling static-sensitive devices FRU removals and replacementsRemoving a fan assembly SP Switch2 service proceduresReplacing a fan assembly Replacing a power supply Removing a power supplyReplacing the LED bracket assembly Removing the LED bracket assemblyRemoving the switch supervisor card Removing an interposer card Replacing the switch supervisor cardReplacing an interposer card Removing the switch planarRemoving the 48 V dc circuit breaker assembly Replacing the switch planarRemoving the LED power extension cable Replacing the 48 V dc circuit breaker assemblyReplacing the LED power extension cable Parts catalog SP Switch2 assembly view Assembly Part number Units Description Index 4RS/6000 SP SP Switch2 Service Guide Baffle, Power Supply Bay Tray This page intentionally left blank Switch cablesSwitch cables Front SP Switch2 Frame F/CSP Switch2 Frame F/C 2032 frame extender F/C 2032 frame extender SP Switch2 Frame Model 556 and F/C SP Switch2 Frame Model 556 and F/C Model 556 and F/C 2034 frame extender Model 556 and F/C 2034 frame extender 16RS/6000 SP SP Switch2 Service Guide AIX TrademarksEuropean Union EU statement United Kingdom telecommunications safety requirementsIndustry Canada compliance statement Electromagnetic interference EMI statement Taiwan For installations in JapanRadio protection for Germany 4RS/6000 SP SP Switch2 Service Guide Index Numerics Files Created by css.snap Removing LED bracket 4RS/6000 SP SP Switch2 Service Guide How satisfied are you that the information in this book is Readers comments ± Wed like to hear from youPlease tell us how we can improve this book Business Reply Mail Page Ibmr
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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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