Problem Solving and Troubleshooting in AIX 5L - IBM Redbooks

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xii Problem Solving and Troubleshooting in AIX 5L
Figures 1-1 Boot path flowchart: part one . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1-2 Boot path flowchart: Part two . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1-3 Boot path flowchart: part three. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1-4 Machine displaying 888 in LED or LCD . . . . . . . . . . . . . . . . . . . . . . . . . 15 2-1 Error log file processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4-1 Start panel of Web-based System Manager . . . . . . . . . . . . . . . . . . . . . 72 4-2 System Environment Settings panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 4-3 Dumps Properties panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 4-4 Selecting dump device on Web-based System Manager . . . . . . . . . . . 76 4-5 Dump Device Check panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 4-6 Always allow system dump setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 4-7 Machine state save area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 5-1 Example of SCSI labelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 7-1 TCP/IP network connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 7-2 Selective host. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 7-3 No network access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 9-1 Endian diagram example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 10-1 Bottleneck determining process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311 10-2 System Environment Settings panel . . . . . . . . . . . . . . . . . . . . . . . . . . 328 10-3 Device sys0 properties panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329 © Copyright IBM Corp. 2001 xiii
Page 1: Problem Solving and Troubleshooting
Page 4 and 5: Take Note! Before using this inform
Page 6 and 7: 3.2.1 Pre-boot state . . . . . . .
Page 8 and 9: 6.1.4 LVM device driver . . . . . .
Page 10 and 11: 8.1.1 Removing devices. . . . . . .
Page 12 and 13: 12.2.3 Use splp to look at printer
Page 16 and 17: xiv Problem Solving and Troubleshoo
Page 18 and 19: xvi Problem Solving and Troubleshoo
Page 20 and 21: KyeongWon Jeong is a Consulting IT
Page 22 and 23: We want our IBM Redbooks to be as h
Page 24 and 25: Although the title of this redbook
Page 26 and 27: The following questions should be a
Page 28 and 29: should be supplied to IBM. If possi
Page 30 and 31: Document Form number RS/6000 and pS
Page 32 and 33: pSeries and RS/6000 Model Form numb
Page 34 and 35: Does machine power on and stay powe
Page 36 and 37: From Figure 1-2 on page 13. Do you
Page 38 and 39: Symptom Possible cause Refer to LED
Page 40 and 41: ► Check disk space availability o
Page 42 and 43: 2.1 Error logging overview The erro
Page 44 and 45: 2.2.2 Error messages The template a
Page 46 and 47: 35BFC499 0821161601 P H cd0 DISK OP
Page 48 and 49: There are some new options introduc
Page 50 and 51: PERF The performance of the device
Page 52 and 53: VPD Vital product data. The content
Page 54 and 55: SENSE DATA 0000 0000 0000 0000 0000
Page 56 and 57: __filbuf 2C0 fgets 134 ftp_fgets 9C
Page 58 and 59: AIX 5L Version 5.1 has changed the
Page 60 and 61: usr/lib/libbsd.a /usr/lib/libbind.a
Page 62 and 63: 3.1 Types of machines Certain proce
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42 Problem Solving and Troubleshoot
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ackplane, and on the 7015 R series,
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Boot process differences On the S70
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3.2.4 Boot stage three Once the ico
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Access boot list on PCI machine To
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Machine hang shortly after power on
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containing hd5, return to step 5 an
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Note: Power cables must be removed
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3.6 LED 551, 552, 554, 555, 556, an
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7. If there is a version of v3fshel
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# fsck -y /dev/hd4 # fsck -y /dev/h
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3.6.3 LED 553 halt 12.If you copied
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export PATH 8. /etc/environment is
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3.7 No login prompt If the system b
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4.1 Introduction Your system genera
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Option 1: Using the Web-based Syste
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After selecting this sequence, the
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Note: AIX releases prior to Version
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Option 3: Using the command line To
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The -l flag logs the command output
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Option 3: Using the command line Ru
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Figure 4-6 Always allow system dump
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LED code sysdumpdev status 0c5 -3 I
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SYSTEM MESSAGES: AIX Version 5.1 St
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The snap command supports the follo
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Forcing a dump on MCA systems To fo
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► Creation and deletion of proces
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nid....... 4232044C time of crash:
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Example 4-16 stack trace back (0)>
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........... ganchor :00000000 THREA
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.lowthresh_init 019E7028 .strthresh
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► knlist [symbol] Displays addres
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In this example, there are two leve
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proc subcommand The proc subcommand
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PID Process ID of the associated pr
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Handling crash output Some crash su
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114 Problem Solving and Troubleshoo
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5.1 General advice 5.1.1 Diagnostic
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- The GH value identifies a port, a
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5.2.1 Making sense of the error log
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ROS Level and ID............5 5A Se
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http://www.ibm.com/servers/eserver/
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Example 5-2 FUNCTION SELECTION menu
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Concurrent mode provides a way to r
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Once the keyboard input has been pr
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The machine types that support boot
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3. Select Service Aids or Task Sele
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10.Enter the client address, server
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The microcode download facility is
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Note: The 7248 43P SMS microcode is
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The CHRP machines models, 7017-S70,
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Low-voltage differential/single-end
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Inforamtion for Micro Channel Bus S
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This message will be produced when
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Failed The drive was failed by the
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Feature Code 5.8.2 SSA devices 6219
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Note: The cfgmgr command should not
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5.9.2 External tapes and tape libra
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condensation on the tape surface th
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When checking the settings for thes
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6.1 Logical Volume Manager (LVM) Th
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specific program using the API cert
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6.2.3 Physical volumes 6.2.4 Volume
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6.3.1 Data integrity Depending on t
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Here is an example: # varyoffvg dat
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You can use this log file to determ
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6.4 JFS problems As with the LVM, m
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- Dot dot (..) link missing or not
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If the jfslog device for a file sys
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There are many reasons for the repl
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0001 0110 hdisk2 0110 hdisk3 0002 0
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2. Unmount all file systems on the
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► For MCA machines Booting from a
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You can see that the HOT SPARE flag
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At this point, do the following: 1.
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. Change/show the use of an SSA Phy
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7.1 General network problem isolati
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traceroute uses the UDP protocol an
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If the answer is no, you might have
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If external resolvers query your se
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7.2.5 Dynamic or static routing If
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The subsystem does not support the
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Verify the interface state with the
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or the SMIT fast path smit chinet t
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In the General Statistics: section
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This problem can occur if the ELAN
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If you are receiving output similar
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If the error message is: ping: send
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Use the vi editor with the set list
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Below is the normal output that is
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If telnet is hanging after entering
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3. Verify using the following comma
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7.4.3 mbufs 7.4.4 thewall To check
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7.4.8 traceroute 7.4.9 netstat The
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udp: 269378 datagrams received 0 in
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7.4.12 tcpdump 7.4.13 no The follow
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VIPA can be configured with the mkd
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9.3.187.185 sydney 9.3.187.186 napo
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tiny YP_LAST_MODIFIED 0706832572 YP
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The ypwhich command is inconsistent
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Run nismatch username.domainname.cr
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Logs grow too large Failure to regu
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If an NIS+ database is corrupt, you
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► Verify that the mountd, portmap
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► mount: access denied ... Your m
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The NFS server (host name) is down.
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domain names of hosts so that users
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7.8.1 AIX as a PPP client (outgoing
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Where /tmp/ppp is the file set up w
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Use the following command to connec
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7.9 Sendmail troubleshooting AIX 5L
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When a workstation that is behind a
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8.1 Handling graphics devices Befor
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8.3 X server 8.3.1 Start X server
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3. Wrong display. The X server mayb
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4. To find the location of the hang
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► TCP sockets This is applicable
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If this fails to start, check the f
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. . number of extensions: 8 XInputE
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8.6.3 Problem with login 8.6.4 CDE
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While some of these filesets increa
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In general, the causes of user appl
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9.2.3 Name conflict Depending on ho
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exist. 290 Problem Solving and Trou
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AIX 5L Version 5.1 binary compatibi
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► The nlist() interface ► DCE t
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► POSIX compliant AIX is POSIX an
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in the wget.spec file to: %define v
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Finding memory-leaking programs A m
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The following resource managers are
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State = "Active" condition-response
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Detection Time-out [2] # Process Pr
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1735-023 shconf: Priority Problem C
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► Hardware problems Problems with
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10.2 Monitoring performance Due to
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This command displays one line of o
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Useful flags -P Proc ID, ... | ALL
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Emulation and alignment detection I
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There are several general rules tha
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Use the following commands to deter
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Example 10-6 The memory usage of a
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means no pacing. A process cannot e
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ARG/ENV list size in 4K byte blocks
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scsi1 5415.8 1354.0 11644 0 Disks:
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-o file: open output file (default
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10.3.1 Using the netpmon command Th
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The type of report can be customize
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enice Alters priority of running pr
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11.1 Introduction The trace system
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In AIX 5L Version 5.1, trace now su
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Interactive mode tracing If the tra
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SAVE PREVIOUS log file? [no] + Omit
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# trcstop To trace the same command
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-O Options Allows more detailed opt
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Copy the following files from the s
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- Is the data formatted properly by
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- PowerPC: lssrc -s qdaemon 12.1.2
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the printer is attached to a local
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- The right size of paper was not r
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for “character special device.”
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Make sure to look at the space that
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Does the printer print correctly fo
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12.1.6 The output spacing is bad Th
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echo “\033)0B\c” The command us
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Make sure that the lpd server is ac
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Are the flags correct? This is a go
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12.2.4 Printing to a file Printing
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12.2.7 Using iptrace to trace netwo
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Capturing a file as it goes over th
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The other method to capture flags i
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16-port adapter considerations The
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System V defined printer attributes
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The lpNet log shows you when networ
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When looking at the file, it may be
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Interface file banner selection For
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These tools can be expanded until y
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Remote: rs1230a.itsc.austin.ibm.com
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12.3.14 Troubleshooting HP JetDirec
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Extraneous files in qdir Another pr
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produced this error message in msg1
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Line descriptions for the file abov
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This is also useful to see how diff
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Configuration banner selection Bann
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12.5.2 Cannot change attributes bec
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Although the hpnpcfg script is undo
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13.1 Debugging a network boot probl
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ootps dgram udp wait root /usr/sbin
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database shows the correct platform
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For other NIM LED codes, see Table
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13.2.1 Producing debug output from
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13.2.2 Producing debug output from
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Time: 35 LEDS: 0x539 Number of runn
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3. Select the showlog operation. 4.
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► 7015 R10/R20/R21 Service Guide,
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► AIX 5L Version 5.1 System Manag
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The following terms are trademarks
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LES LAN Emulation Server LUM Licenc
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adapter part number 146 adapter pla
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more 23 mount 176 mpcfg 42 netpmon
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du 176 dummy queue device 404 dump
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hardware surveillance 41 hardware t
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lo0 203 loader 289 local traffic 22
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od 409 od subcommand 110 ODM 20, 25
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eadelf 297 real memory 319 realloc(
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System V print subsystem 390 stop b
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serial pinouts 388 WLM 337 wlmmon c
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Problem Solving and Troubleshooting
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Problem Solving and Troubleshooting in AIX 5L - IBM Redbooks

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