AIX 5L Problem Determination - IBM Redbooks

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To change the current log file, the errdemon command is used as follows: # /usr/lib/errdemon -i /var/adm/ras/myerrlog To change the error log file size, the errdemon command is used as follows: # /usr/lib/errdemon -s 47798 To change the error log buffer size, the errdemon command is used as follows: # /usr/lib/errdemon -B 16384 0315-175 The error log memory buffer size you supplied will be rounded up to a multiple of 4096 bytes. The new status can be checked using the errdemon command as follows: # /usr/lib/errdemon -l Error Log Attributes -------------------------------------------- Log File /var/adm/ras/myerrlog Log Size 47798 bytes Memory Buffer Size 16384 bytes The errdemon command without flags will start the error daemon if it is not running as follows: # /usr/lib/errdemon If the error daemon is running, an error will be reported as follows: # /usr/lib/errdemon 0315-100 The error log device driver, /dev/error, is already open. The error demon may already be active. 6.3 The errpt command The errpt command generates an error report from entries in an error log. It includes flags for selecting errors that match specific criteria. By using the default condition, you can display error log entries in the reverse order in which they occurred and were recorded. By using the - c (concurrent) flag, you can display errors as they occur. If the -i flag is not used with the errpt command, the error log file processed by errpt is the one specified in the error log configuration database (by default /var/adm/ras/errlog). The default summary report contains one line of data for each error. You can use flags to generate reports with different formats. 110 IBM ^ Certification Study Guide - AIX 5L Problem Determination Tools and Techniques
Note: The errpt command does not perform error log analysis; for analysis, use the diag command. To process a report from the error log, use the following syntax: errpt [ -a ] [ -c ] [ -d ErrorClassList ] [ -e EndDate ] [ -g ] [ -i File ] [ -j ErrorID [ ,ErrorID ] ] | [ -k ErrorID [ ,ErrorID ] ] [ -J ErrorLabel [ ,ErrorLabel ] ] | [ -K ErrorLabel [ ,ErrorLabel ] ] [ -l SequenceNumber ] [ -m Machine ] [ -n Node ] [ -s StartDate ] [ -F FlagList ] [ -N ResourceNameList ] [ -R ResourceTypeList ] [ -S ResourceClassList ] [ -T ErrorTypeList ] [ -y File ] [ -z File ] Figure 6-1 shows how the errpt command processes a report from the error log. Figure 6-1 The errpt command error log report process Chapter 6. Error reports 111
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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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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
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Page 112 and 113: DSIRR Data Storage Interrupt Reason
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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
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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
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Page 158 and 159: 6.7.1 Answers 6.8 Exercises The fol
Page 160 and 161: 7.1 LVM data The Logical Volume Man
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Page 164 and 165: AIX version level Verify that the v
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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
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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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7.7.1 Answers 7.8 Exercises The fol
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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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8.6.1 Answers 8.7 Exercises The fol
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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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Subcommand Description return Conti
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15) phxent_dd [5 entries] 16) kbddd
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10.8 Command summary The following
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10.8.4 The nfsstat command 10.9 Qui
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6. Which command will show system c
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11.1 Overview 11.1.1 Terminology 11
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Note: Before installing a new set o
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► APAR number, such as IY00301. I
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► To install all filesets associa
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Table 11-2 Commonly used flags of t
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11.5 Quiz Flag Description -f Check
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- A Web server The browser must be
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Figure 12-2 HTTP filesets If you ar
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- Remote computer Type the remote d
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Figure 12-4 Documentation Library S
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CISPR International Special Committ
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I/O Input/Output I 2 C Inter Integr
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OEM Original Equipment Manufacturer
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SPM System Performance Measurement
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Other resources These publications
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phase1 figure 23 phase2 15, 24, 36
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pc.statd 189 daemons shdaemon 73 te
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host name resolution telnet login p
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N name resolution diagnostic 185 pr
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ecent CPU usage 241 recovering an i
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System Resource Controller (SRC) 13
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IBM Certification Study Guide - AIX
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AIX 5L Problem Determination - IBM Redbooks

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