AIX 5L Problem Determination - IBM Redbooks

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I/O Input/Output I 2 C Inter Integrated-Circuit Communications IAR Instruction Address Register IBM International Business Machines ICCCM Inter-Client Communications Conventions Manual ICE Inter-Client Exchange ICElib Inter-Client Exchange library ICMP Internet Control Message Protocol ID Identification IDE Integrated Device Electronics IDS Intelligent Decision Server IEEE Institute of Electrical and Electronics Engineers IETF Internet Engineering Task Force IHV Independent Hardware Vendor IIOP Internet Inter-ORB Protocol IJG Independent JPEG Group IKE Internet Key Exchange ILS International Language Support IM Input Method INRIA Institut National de Recherche en Informatique et en Automatique IP Internetwork Protocol (OSI) IPL Initial Program Load IPSec IP Security IrDA Infrared Data Association (which sets standards for infrared support including protocols for data interchange) IRQ Interrupt Request IS Integrated Service ISA Industry Standard Architecture, Instruction Set Architecture ISAKMP Internet Security Association Management Protocol ISB Intermediate Switch Board ISDN Integrated-Services Digital Network ISMP InstallSheild Multi-Platform ISNO Interface Specific Network Options ISO International Organization for Standardization ISV Independent Software Vendor ITSO International Technical Support Organization JBOD Just a Bunch of Disks JDBC Java Database Connectivity JFC Java Foundation Classes JFS Journaled File System JTAG Joint Test Action Group KDC Key Distribution Center L1 Level 1 L2 Level 2 L2 Level 2 LAN Local Area Network LANE Local Area Network Emulation LAPI Low-Level Application Programming Interface LDAP Lightweight Directory Access Protocol LDIF LDAP Directory Interchange Format LED Light Emitting Diode LFD Load Float Double LFT Low Function Terminal 334 IBM ^ Certification Study Guide - AIX 5L Problem Determination Tools and Techniques
LID Load ID LLNL Lawrence Livermore National Laboratory LP Logical Partition LP64 Long-Pointer 64 LPI Lines Per Inch LPP Licensed Program Product LPR/LPD Line Printer/Line Printer Daemon LRU Least Recently Used LTG Logical Track Group LV Logical Volume LVCB Logical Volume Control Block LVD Low Voltage Differential LVM Logical Volume Manager MAP Maintenance Analysis Procedure MASS Mathematical Acceleration Subsystem MAU Multiple Access Unit MBCS Multi-Byte Character Support Mbps Megabits Per Second MBps Megabytes Per Second MCA Micro Channel Architecture MCAD Mechanical Computer-Aided Design MDI Media Dependent Interface MES Miscellaneous Equipment Specification MFLOPS Million of FLoating point Operations Per Second MII Media Independent Interface MIP Mixed-Integer Programming MLR1 Multi-Channel Linear Recording 1 MMF Multi-Mode Fibre MODS Memory Overlay Detection Subsystem MP Multiprocessor MPC-3 Multimedia PC-3 MPI Message Passing Interface MPOA Multiprotocol over ATM MPP Massively Parallel Processing MPS Mathematical Programming System MST Machine State MTU Maximum Transmission Unit MWCC Mirror Write Consistency Check MX Mezzanine Bus NBC Network Buffer Cache NCP Network Control Point ND Neighbor Discovery NDP Neighbor Discovery Protocol NFB No Frame Buffer NFS Network File System NHRP Next Hop Resolution Protocol NIM Network Installation Management NIS Network Information System NL National Language NLS National Language Support NT-1 Network Terminator-1 NTF No Trouble Found NTP Network Time Protocol NUMA Non-Uniform Memory Access NUS Numerical Aerodynamic Simulation NVRAM Non-Volatile Random Access Memory NWP Numerical Weather Prediction OACK Option Acknowledgment OCS Online Customer Support ODBC Open DataBase Connectivity ODM Object Data Manager Abbreviations and acronyms 335
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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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The sequence of attributes within a
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Page 316 and 317: 10.6.1 The dbx command The dbx comm
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Page 330 and 331: 11.1 Overview 11.1.1 Terminology 11
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Page 340 and 341: 11.5 Quiz Flag Description -f Check
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Page 346 and 347: Figure 12-2 HTTP filesets If you ar
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Page 354 and 355: CISPR International Special Committ
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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