AIX 5L Problem Determination - IBM Redbooks

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CISPR International Special Committee on Radio Interference CLIO/S Client Input/Output Sockets CLVM Concurrent LVM CMOS Complimentary Metal-Oxide Semiconductor CMP Certificate Management Protocol COFF Common Object File Format COLD Computer Output to Laser Disk CPU Central Processing Unit CRC Cyclic Redundancy Check CSID Character Set ID CSR Customer Service Representative CSS Communication Subsystems Support CSU Customer Set-Up CWS Control Workstation DAD Duplicate Address Detection DAS Dual Attach Station DASD Direct Access Storage Device DAT Digital Audio Tape DBCS Double Byte Character Set DBE Double Buffer Extension DC Direct Current DCE Distributed Computing Environment DDC Display Data Channel DDS Digital Data Storage DE Dual-Ended DES Data Encryption Standard DFL Divide Float DFP Dynamic Feedback Protocol DFS Distributed File System DHCP Dynamic Host Configuration Protocol DIMM Dual In-Line Memory Module DIP Direct Insertion Probe DIT Directory Information Tree DIVA Digital Inquiry Voice Answer DLT Digital Linear Tape DMA Direct Memory Access DMT Directory Management Tool DN Distinguished Name DNS Domain Naming System DOE Department of Energy DOI Domain of Interpretation DOS Disk Operating System DPCL Dynamic Probe Class Library DRAM Dynamic Random Access Memory DS Differentiated Service DSA Dynamic Segment Allocation DSE Diagnostic System Exerciser DSMIT Distributed SMIT DSU Data Service Unit DTE Data Terminating Equipment DW Data Warehouse EA Effective Address EC Engineering Change ECC Error Checking and Correcting EEPROM Electrically Erasable Programmable Read Only Memory EFI Extensible Firmware Interface EHD Extended Hardware Drivers EIA Electronic Industries Association EISA Extended Industry Standard Architecture 332 IBM ^ Certification Study Guide - AIX 5L Problem Determination Tools and Techniques
ELA Error Log Analysis ELF Executable and Linking Format EMU European Monetary Union EOF End of File EPOW Environmental and Power Warning ERRM Event Response resource manager ESID Effective Segment ID ESP Encapsulating Security Payload ESSL Engineering and Scientific Subroutine Library ETML Extract, Transformation, Movement, and Loading F/C Feature Code F/W Fast and Wide FC Fibre Channel FCAL Fibre Channel Arbitrated Loop FCC Federal Communication Commission FCP Fibre Channel Protocol FDDI Fiber Distributed Data Interface FDPR Feedback Directed Program Restructuring FDX Full Duplex FIFO First In/First Out FLASH EPROM Flash Erasable Programmable Read-Only Memory FLIH First Level Interrupt Handler FMA Floating point Multiply Add operation FPR Floating Point Register FPU Floating Point Unit FRCA Fast Response Cache Architecture FRU Field Replaceable Unit FSRM File System Resource Manager FTP File Transfer Protocol FTP File Transfer Protocol GAI Graphic Adapter Interface GAMESS General Atomic and Molecular Electronic Structure System GPFS General Parallel File System GPR General-Purpose Register GUI Graphical User Interface GUID Globally Unique Identifier HACMP High Availability Cluster Multi Processing HACWS High Availability Control Workstation HCON IBM AIX Host Connection Program/6000 HDX Half Duplex HFT High Function Terminal HIPPI High Performance Parallel Interface HiPS High Performance Switch HiPS LC-8 Low-Cost Eight-Port High Performance Switch HMC Hardware Management Console HostRM Host Resource Manager HP Hewlett-Packard HPF High Performance FORTRAN HPSSDL High Performance Supercomputer Systems Development Laboratory HP-UX Hewlett-Packard UNIX HTML Hyper-text Markup Language HTTP Hypertext Transfer Protocol Hz Hertz Abbreviations and acronyms 333
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ibm.com/redbooks IBM Certification
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Note: Before using this information
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3.5.1 The /etc/inittab file . . . .
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7.2.1 Data relocation . . . . . . .
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9.9.1 The lslicense command . . . .
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x IBM ^ Certification Study Guide -
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10-12 Performance tuning flowchart
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8-7 Commonly used flags of the rout
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Trademarks The following terms are
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This publication does not replace p
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Comments welcome Your comments are
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1.1 Certification requirements To a
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e. Verify that file systems are mou
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Preparation for this exam is the to
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2.1 Defining the problem The first
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If the problem occurs on more than
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2.4.1 Answers The following are the
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3.1 A general overview of the boot
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mainly to components on the motherb
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Figure 3-3 Task selection menu in d
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3.2.2 PCI systems next step is to s
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3.3 Boot phase 1 Newer PCI architec
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3.4 Boot phase 2 In boot phase 2, t
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As mentioned, there are a lot of di
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3.4.3 LED 518 product documentation
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Figure 3-9 Boot phase 3 /etc/initta
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3.5.2 LED 553 3.5.3 LED c31 3.5.4 L
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3.5.5 pSeries servers A specific LE
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When the system is gracefully shut
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LED Reason/action c31 Define the co
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3. A file system is being mounted b
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3.9.1 Answers 3.10 Exercises The fo
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4.1 Hardware basics RS/6000 and pSe
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The most important fields in the pr
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Figure 4-1 Main diagnostics menu Th
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► Full testing requires that the
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3. Place the CD-ROM into the drive.
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Note: This service aid is only pres
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2. Select Change Show use of an SSA
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LED 299 A LED code of 299 shows tha
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Figure 4-2 Format of the 103 code m
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4.5 Quiz The following assessment q
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4.5.1 Answers 4.6 Exercises The fol
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5.1 Configuring the dump device Pri
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5.2 Starting a system dump A user-i
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A command status screen will be dis
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If the system does not have a key s
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The shconf command is invoked when
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5.4 Increasing the size of the dump
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Setting output device to /dev/rmt0.
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Look at the time of the dump and th
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Failure Causes SOFTWARE PROGRAM Rec
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Using crash, you can examine: ► A
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► ? or help[] Lists all subcomman
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LR: .waitproc+d4 (0000edc4) 2ff3b38
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DSIRR Data Storage Interrupt Reason
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*prevthread:0xe6000000 *nextthread:
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In this example, the VMM return cod
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The snap command syntax is as follo
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Flag Description -t Format Lists ea
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Flag Description -p Device Temporar
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Figure 5-3 Error log case study 2.
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Figure 5-4 Case study Which of the
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5.10.1 Answers 5.11 Exercises The f
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6.1 The error daemon The error logg
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To change the current log file, the
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To process a report from the error
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Flag Description -g Displays the AS
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Flag Description -F FlagList Select
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Probable Causes ERRDEMON STARTED AU
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To display a detailed report of all
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USER ID 0 0=SOFT IPL 1=HALT 2=TIME
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Resource Class: planar Resource Typ
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Flag Description -k ErrorID[,ErrorI
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6.5.1 Setting up an accounting syst
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6.6 The syslogd daemon The syslogd
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Use the following message priority
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3. A system operator accidentally d
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7.1 LVM data The Logical Volume Man
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7.2.1 Data relocation 7.2.2 Backup
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AIX version level Verify that the v
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This example shows that the volume
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This error information displays the
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hdisk0 Available 30-58-00-8,0 16 Bi
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7.4 The AIX JFS 7.4.1 Creating a JF
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7.4.2 Increasing the file system si
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In many cases, restoration of the b
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lv02 jfs 2 2 1 open/syncd /u/testfs
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► Understanding enhanced journale
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512 bytes) to minimize internal fra
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Function JFS2 JFS Compression No Ye
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7.4.10 Disk quota Pseudo file name
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home: blocks in use: 0, limits (sof
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7.5.3 Reducing and removing paging
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Table 7-3 Commonly used flag of the
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7.6.4 The rmlvcopy command The rmlv
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Which of the following commands sho
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8.1 Network interface problems If h
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As you can see, the output shows th
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3. If there is a default route, att
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If you are using the route command
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address of the named server and try
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TOK: access control field = 0, fram
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4. Initiate an iptrace (client, ser
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the nfs_max_threads parameter of th
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Flags Description -s host Records p
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8.6 Quiz Table 8-8 Commonly used fl
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8. Which of the following options w
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9.1 User license problems If it is
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telnet: connect: A remote host did
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9.2.4 Telnet error If when attempti
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user is limited and defined as an A
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9.4.3 A full file system uid=0(root
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9.5.1 Trace hook IDs The events tra
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your trace, the system may be traci
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113 0.004261661 0.001518 unlock: lo
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If the sendmail command encounters
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9.8 Printing Task SMIT fast path Co
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Action or function System V PowerPC
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Switching between subsystems The op
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Flag Description -s Subsystem Speci
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9.10 Quiz Flag Description -O Optio
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6. A user has the ability to ping t
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232 IBM ^ Certification Study Guide
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Figure 10-1 General performance tun
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Display previously captured data Th
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10.1.2 The vmstat command The vmsta
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later). The method used in AIX Vers
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second. Large values indicate a CPU
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kernel routine records the process
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syncd 1 2 2 0 0 0 sh 1 1 1 0 0 0 sl
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The memory columns The memory colum
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The sr column The sr column shows t
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If you want to sort to the sixth co
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► Workload Management Class (-W)
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schedtune limitations The schedtune
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schedtune parameters are reset by t
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Normal files are automatically mapp
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tty: tin tout avg-cpu: % user % sys
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When looking for performance proble
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those that do not. If you are runni
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The netstat -m command The netstat
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spec buf 1 0 0 0 128 128 0 locking
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Late Collision Errors The Late Coll
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The retrans column displays the num
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Figure 10-3 Web-based System Manage
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Superclasses A superclass is a clas
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► Shared subclass: This subclass
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Page 316 and 317: 10.6.1 The dbx command The dbx comm
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Page 322 and 323: 10.8 Command summary The following
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Page 330 and 331: 11.1 Overview 11.1.1 Terminology 11
Page 332 and 333: Note: Before installing a new set o
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Page 338 and 339: Table 11-2 Commonly used flags of t
Page 340 and 341: 11.5 Quiz Flag Description -f Check
Page 344 and 345: - A Web server The browser must be
Page 346 and 347: Figure 12-2 HTTP filesets If you ar
Page 348 and 349: - Remote computer Type the remote d
Page 350 and 351: Figure 12-4 Documentation Library S
Page 356 and 357: I/O Input/Output I 2 C Inter Integr
Page 358 and 359: OEM Original Equipment Manufacturer
Page 360 and 361: SPM System Performance Measurement
Page 364 and 365: Other resources These publications
Page 368 and 369: phase1 figure 23 phase2 15, 24, 36
Page 370 and 371: pc.statd 189 daemons shdaemon 73 te
Page 372 and 373: host name resolution telnet login p
Page 374 and 375: N name resolution diagnostic 185 pr
Page 376 and 377: ecent CPU usage 241 recovering an i
Page 378 and 379: System Resource Controller (SRC) 13
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