AIX 5L Problem Determination - IBM Redbooks

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phase1 figure 23 phase2 15, 24, 36 phase2 figure1 24 phase2 figure2 25 phase3 15, 29, 37 POST 14–15 runlevel 32 service 16 service boot 21 service mode 50 SMS main menu figure 21 superblock 27 boot logical volume 14 bootinfo 23, 44 bootinfo command 161 bootlist 16, 22, 26 generic device names 16 bosboot 20, 26, 314 built in self test 15 bundle maintenance level bundle 311 update bundle 311 C cfgmgr 23, 30 cfgmgr command 147 changes to the system 9 changing the bootlist on PCI systems 20 chdev 179 chfs command 152, 165, 210 chps command 167 CHRP 44 chrp 44 chvg command 143, 170 ckpacct 128 class inheritance 282 class assignment rules 286 class name (WLM) 286 classes 276 classification process 283 commands aixterm 214 alog 25, 28 bindprocessor 238 bootinfo 23, 44, 161 bootlist 16, 22, 26 bosboot 20, 26, 314 cfgmgr 23, 30, 147 chdev 179 chfs 152, 165, 210 chps 167 chvg 143, 170 crash 79, 83 date 119 dd 28, 138, 153 df 156, 210 diag 47 du 156 edquota 164–165 entstat 180 errclear 108, 127 errdemon 108–109 errpt 35, 38, 81, 117 exportfs 190 extendvg 148 filemon 264 fileplace 264 find 82 fsck 26, 152 genkex 155 getconf 161 host 185, 190 ifconfig 178 importvg 138, 141, 171 installp 309–310, 313 instfix 313, 315 iostat 260 ipl_varyon 24 ipreport 33 iptrace 33, 186 logform 26 lppchk 309, 314 lpstat 220 lquerypv 83 lsattr 46, 179, 271 lscfg 44 lsdev 44, 178 lsjfs 151 lslicense 202, 225 lslpp 310, 315 lsps 76 lspv 142 lsrset 290 lssrc 183, 204, 225 lsvg 145, 169 mergedev 25 346 IBM ^ Certification Study Guide - AIX 5L Problem Determination Tools and Techniques
migratepv 53 mkclass 283 mklvcopy 148 mount 191 netpmon 274 netstat 179, 181, 266, 301 nfsstat 273, 302 no 185, 268 ipforwarding 185 nslookup 185, 205 ping 181–182 ps 241, 251, 300 qchk 220 quotacheck 166 quotaon 166 redefinevg 141 reducevg 172 restbase 23 rmdev 172 rmlvcopy 146, 172 rmps 168–169 route 185 sar 235, 300 savebase 27, 31 shconf 74 snap 77, 95 startsrc 183, 204, 226 stopsrc 190 strings 83, 97 su 208 svmon 248, 253 swapoff 169 synclvodm 141, 150 syncvg 30, 141, 148, 173 sysdumpdev 66–68, 70–71, 76–77, 98, 168 sysdumpstart 68, 100 tar 78 tcpdump 186 tee 94 topas 214 tprof 243 trace 211–212, 226 traceroute 183 trcoff 264 trcon 264 trcrpt 213, 227 trcstop 213, 264 uptime 39 varyonvg 138–139 vmstat 238, 247 vmtune 248 w 39 wlmcntrl 293 compatibility workload manager 289 computational memory 246 Config_Rules 23 configuration, ODM 144 connection oriented 273 connectionless 273 core dump checking error report 81 determine program responsible 82 locating core file 82 core dumps 81 CPU bound system 235 crash command 79, 83 uses 83 crash subcommands 85 errpt 93 le 90 od 92 proc 90 output fields 91 set 94 stat 86 symptom 93 thread 91 output fields 92 trace 87 exception structure 89 creating JFS 150 cred pseudo file 163 crfs 157 ctl pseudo file 163 customer relations 7 D daemon biod 189 gated 184 mountd 190 nfsd 189 portmap 189 routed 184 rpc.lockd 189 rpc.mountd 189 Index 347
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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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This manual assignment can be done
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This defines three levels of privil
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The class assignment is done by WLM
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Figure 10-8 shows the SMIT panel wh
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Figure 10-10 SMIT panel for rset re
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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 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 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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