AIX 5L Problem Determination - IBM Redbooks

More documents

Recommendations

Info

10-12 Performance tuning flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299 11-1 SMIT Software Maintenance and Utilities panel . . . . . . . . . . . . . . . . . 311 11-2 Install and Update Software panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313 12-1 Netscape filesets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323 12-2 HTTP filesets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324 12-3 Documentation Library Service filesets . . . . . . . . . . . . . . . . . . . . . . . . 325 12-4 Documentation Library Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328 xii IBM ^ Certification Study Guide - AIX 5L Problem Determination Tools and Techniques
Tables 3-1 Common MCA LED codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3-2 MCA POST LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3-3 Boot phase 2 LED codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3-4 Boot phase 3 LED codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3-5 Commonly used flags of the errpt command . . . . . . . . . . . . . . . . . . . . . 38 3-6 Commonly used flags of the w command . . . . . . . . . . . . . . . . . . . . . . . 39 4-1 SSA adapter information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 4-2 Common MCA LED codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 4-3 Location code mapping table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 4-4 Commonly used flags of the chdev command . . . . . . . . . . . . . . . . . . . . 61 4-5 Commonly used flags of the lsattr command. . . . . . . . . . . . . . . . . . . . . 61 5-1 REMOTE reboot ENABLE settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 5-2 SHD default values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 5-3 Differences in system dump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 5-4 The vmmerrlog structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 5-5 Commonly used flags of the snap command. . . . . . . . . . . . . . . . . . . . . 96 5-6 Commonly used flags of the strings command . . . . . . . . . . . . . . . . . . . 97 5-7 Commonly used flags of the sysdumpdev command . . . . . . . . . . . . . . 99 5-8 Commonly used flags of the sysdumpstart command . . . . . . . . . . . . . 101 6-1 Commonly used flags of the errdemon command . . . . . . . . . . . . . . . . 108 6-2 Commonly used flags of the errpt command . . . . . . . . . . . . . . . . . . . . 112 6-3 List of error classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 6-4 Commonly used flags of the errclear command . . . . . . . . . . . . . . . . . 125 6-5 System Resource Controller commands . . . . . . . . . . . . . . . . . . . . . . . 130 7-1 Journaled file system specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 161 7-2 Functions of pseudo files in /proc/ directory . . . . . . . . . . . . . . . . 163 7-3 Commonly used flag of the lsvg command . . . . . . . . . . . . . . . . . . . . . 170 7-4 Commonly used flag of the chvg command. . . . . . . . . . . . . . . . . . . . . 171 7-5 Commonly used flags of the importvg command. . . . . . . . . . . . . . . . . 171 7-6 Commonly used flags of the reducevg command . . . . . . . . . . . . . . . . 172 7-7 Commonly used flags of the rmdev command. . . . . . . . . . . . . . . . . . . 172 7-8 Commonly used flag of the syncvg command . . . . . . . . . . . . . . . . . . . 173 8-1 Commonly used flags of the chdev command . . . . . . . . . . . . . . . . . . . 192 8-2 Commonly used flags of the exportfs command . . . . . . . . . . . . . . . . . 192 8-3 Commonly used flags of the ifconfig command . . . . . . . . . . . . . . . . . . 193 8-4 Commonly used flags of the iptrace command . . . . . . . . . . . . . . . . . . 193 8-5 Commonly used flags of the lsattr command. . . . . . . . . . . . . . . . . . . . 194 8-6 Commonly used flags of the netstat command . . . . . . . . . . . . . . . . . . 194 © Copyright IBM Corp. 2003. All rights reserved. xiii
Page 1: ibm.com/redbooks IBM Certification
Page 4 and 5: Note: Before using this information
Page 6 and 7: 3.5.1 The /etc/inittab file . . . .
Page 8 and 9: 7.2.1 Data relocation . . . . . . .
Page 10 and 11: 9.9.1 The lslicense command . . . .
Page 12 and 13: x IBM ^ Certification Study Guide -
Page 16 and 17: 8-7 Commonly used flags of the rout
Page 18 and 19: Trademarks The following terms are
Page 20 and 21: This publication does not replace p
Page 22 and 23: Comments welcome Your comments are
Page 24 and 25: 1.1 Certification requirements To a
Page 26 and 27: e. Verify that file systems are mou
Page 28 and 29: Preparation for this exam is the to
Page 30 and 31: 2.1 Defining the problem The first
Page 32 and 33: If the problem occurs on more than
Page 34 and 35: 2.4.1 Answers The following are the
Page 36 and 37: 3.1 A general overview of the boot
Page 38 and 39: mainly to components on the motherb
Page 40 and 41: Figure 3-3 Task selection menu in d
Page 42 and 43: 3.2.2 PCI systems next step is to s
Page 44 and 45: 3.3 Boot phase 1 Newer PCI architec
Page 46 and 47: 3.4 Boot phase 2 In boot phase 2, t
Page 48 and 49: As mentioned, there are a lot of di
Page 50 and 51: 3.4.3 LED 518 product documentation
Page 52 and 53: Figure 3-9 Boot phase 3 /etc/initta
Page 54 and 55: 3.5.2 LED 553 3.5.3 LED c31 3.5.4 L
Page 56 and 57: 3.5.5 pSeries servers A specific LE
Page 58 and 59: When the system is gracefully shut
Page 60 and 61: LED Reason/action c31 Define the co
Page 62 and 63: 3. A file system is being mounted b
Page 64 and 65:
3.9.1 Answers 3.10 Exercises The fo
Page 66 and 67:
4.1 Hardware basics RS/6000 and pSe
Page 68 and 69:
The most important fields in the pr
Page 70 and 71:
Figure 4-1 Main diagnostics menu Th
Page 72 and 73:
► Full testing requires that the
Page 74 and 75:
3. Place the CD-ROM into the drive.
Page 76 and 77:
Note: This service aid is only pres
Page 78 and 79:
2. Select Change Show use of an SSA
Page 80 and 81:
LED 299 A LED code of 299 shows tha
Page 82 and 83:
Figure 4-2 Format of the 103 code m
Page 84 and 85:
4.5 Quiz The following assessment q
Page 86 and 87:
4.5.1 Answers 4.6 Exercises The fol
Page 88 and 89:
5.1 Configuring the dump device Pri
Page 90 and 91:
5.2 Starting a system dump A user-i
Page 92 and 93:
A command status screen will be dis
Page 94 and 95:
If the system does not have a key s
Page 96 and 97:
The shconf command is invoked when
Page 98 and 99:
5.4 Increasing the size of the dump
Page 100 and 101:
Setting output device to /dev/rmt0.
Page 102 and 103:
Look at the time of the dump and th
Page 104 and 105:
Failure Causes SOFTWARE PROGRAM Rec
Page 106 and 107:
Using crash, you can examine: ► A
Page 108 and 109:
► ? or help[] Lists all subcomman
Page 110 and 111:
LR: .waitproc+d4 (0000edc4) 2ff3b38
Page 112 and 113:
DSIRR Data Storage Interrupt Reason
Page 114 and 115:
*prevthread:0xe6000000 *nextthread:
Page 116 and 117:
In this example, the VMM return cod
Page 118 and 119:
The snap command syntax is as follo
Page 120 and 121:
Flag Description -t Format Lists ea
Page 122 and 123:
Flag Description -p Device Temporar
Page 124 and 125:
Figure 5-3 Error log case study 2.
Page 126 and 127:
Figure 5-4 Case study Which of the
Page 128 and 129:
5.10.1 Answers 5.11 Exercises The f
Page 130 and 131:
6.1 The error daemon The error logg
Page 132 and 133:
To change the current log file, the
Page 134 and 135:
To process a report from the error
Page 136 and 137:
Flag Description -g Displays the AS
Page 138 and 139:
Flag Description -F FlagList Select
Page 140 and 141:
Probable Causes ERRDEMON STARTED AU
Page 142 and 143:
To display a detailed report of all
Page 144 and 145:
USER ID 0 0=SOFT IPL 1=HALT 2=TIME
Page 146 and 147:
Resource Class: planar Resource Typ
Page 148 and 149:
Flag Description -k ErrorID[,ErrorI
Page 150 and 151:
6.5.1 Setting up an accounting syst
Page 152 and 153:
6.6 The syslogd daemon The syslogd
Page 154 and 155:
Use the following message priority
Page 156 and 157:
3. A system operator accidentally d
Page 158 and 159:
Page 160 and 161:
7.1 LVM data The Logical Volume Man
Page 162 and 163:
7.2.1 Data relocation 7.2.2 Backup
Page 164 and 165:
AIX version level Verify that the v
Page 166 and 167:
This example shows that the volume
Page 168 and 169:
This error information displays the
Page 170 and 171:
hdisk0 Available 30-58-00-8,0 16 Bi
Page 172 and 173:
7.4 The AIX JFS 7.4.1 Creating a JF
Page 174 and 175:
7.4.2 Increasing the file system si
Page 176 and 177:
In many cases, restoration of the b
Page 178 and 179:
lv02 jfs 2 2 1 open/syncd /u/testfs
Page 180 and 181:
► Understanding enhanced journale
Page 182 and 183:
512 bytes) to minimize internal fra
Page 184 and 185:
Function JFS2 JFS Compression No Ye
Page 186 and 187:
7.4.10 Disk quota Pseudo file name
Page 188 and 189:
home: blocks in use: 0, limits (sof
Page 190 and 191:
7.5.3 Reducing and removing paging
Page 192 and 193:
Table 7-3 Commonly used flag of the
Page 194 and 195:
7.6.4 The rmlvcopy command The rmlv
Page 196 and 197:
Which of the following commands sho
Page 198 and 199:
Page 200 and 201:
8.1 Network interface problems If h
Page 202 and 203:
As you can see, the output shows th
Page 204 and 205:
3. If there is a default route, att
Page 206 and 207:
If you are using the route command
Page 208 and 209:
address of the named server and try
Page 210 and 211:
TOK: access control field = 0, fram
Page 212 and 213:
4. Initiate an iptrace (client, ser
Page 214 and 215:
the nfs_max_threads parameter of th
Page 216 and 217:
Flags Description -s host Records p
Page 218 and 219:
8.6 Quiz Table 8-8 Commonly used fl
Page 220 and 221:
8. Which of the following options w
Page 222 and 223:
Page 224 and 225:
9.1 User license problems If it is
Page 226 and 227:
telnet: connect: A remote host did
Page 228 and 229:
9.2.4 Telnet error If when attempti
Page 230 and 231:
user is limited and defined as an A
Page 232 and 233:
9.4.3 A full file system uid=0(root
Page 234 and 235:
9.5.1 Trace hook IDs The events tra
Page 236 and 237:
your trace, the system may be traci
Page 238 and 239:
113 0.004261661 0.001518 unlock: lo
Page 240 and 241:
If the sendmail command encounters
Page 242 and 243:
9.8 Printing Task SMIT fast path Co
Page 244 and 245:
Action or function System V PowerPC
Page 246 and 247:
Switching between subsystems The op
Page 248 and 249:
Flag Description -s Subsystem Speci
Page 250 and 251:
9.10 Quiz Flag Description -O Optio
Page 252 and 253:
6. A user has the ability to ping t
Page 254 and 255:
232 IBM ^ Certification Study Guide
Page 256 and 257:
Figure 10-1 General performance tun
Page 258 and 259:
Display previously captured data Th
Page 260 and 261:
10.1.2 The vmstat command The vmsta
Page 262 and 263:
later). The method used in AIX Vers
Page 264 and 265:
second. Large values indicate a CPU
Page 266 and 267:
kernel routine records the process
Page 268 and 269:
syncd 1 2 2 0 0 0 sh 1 1 1 0 0 0 sl
Page 270 and 271:
The memory columns The memory colum
Page 272 and 273:
The sr column The sr column shows t
Page 274 and 275:
If you want to sort to the sixth co
Page 276 and 277:
► Workload Management Class (-W)
Page 278 and 279:
schedtune limitations The schedtune
Page 280 and 281:
schedtune parameters are reset by t
Page 282 and 283:
Normal files are automatically mapp
Page 284 and 285:
tty: tin tout avg-cpu: % user % sys
Page 286 and 287:
When looking for performance proble
Page 288 and 289:
those that do not. If you are runni
Page 290 and 291:
The netstat -m command The netstat
Page 292 and 293:
spec buf 1 0 0 0 128 128 0 locking
Page 294 and 295:
Late Collision Errors The Late Coll
Page 296 and 297:
The retrans column displays the num
Page 298 and 299:
Figure 10-3 Web-based System Manage
Page 300 and 301:
Superclasses A superclass is a clas
Page 302 and 303:
► Shared subclass: This subclass
Page 304 and 305:
The sequence of attributes within a
Page 306 and 307:
This manual assignment can be done
Page 308 and 309:
This defines three levels of privil
Page 310 and 311:
The class assignment is done by WLM
Page 312 and 313:
Figure 10-8 shows the SMIT panel wh
Page 314 and 315:
Figure 10-10 SMIT panel for rset re
Page 316 and 317:
10.6.1 The dbx command The dbx comm
Page 318 and 319:
Subcommand Description return Conti
Page 320 and 321:
15) phxent_dd [5 entries] 16) kbddd
Page 322 and 323:
10.8 Command summary The following
Page 324 and 325:
10.8.4 The nfsstat command 10.9 Qui
Page 326 and 327:
6. Which command will show system c
Page 328 and 329:
Page 330 and 331:
11.1 Overview 11.1.1 Terminology 11
Page 332 and 333:
Note: Before installing a new set o
Page 334 and 335:
► APAR number, such as IY00301. I
Page 336 and 337:
► To install all filesets associa
Page 338 and 339:
Table 11-2 Commonly used flags of t
Page 340 and 341:
11.5 Quiz Flag Description -f Check
Page 342 and 343:
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 352 and 353:
Page 354 and 355:
CISPR International Special Committ
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 362 and 363:
Page 364 and 365:
Other resources These publications
Page 366 and 367:
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
Page 380 and 381:
Page 384:
IBM Certification Study Guide - AIX
show all

AIX 5L Problem Determination - IBM Redbooks

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?