AIX 5L Problem Determination - IBM Redbooks

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Figure 10-8 shows the SMIT panel where a resource set can be specified for a specific class. Figure 10-8 Resource set definition to a specific class By default, the system creates one resource set for all physical memory, one for all CPUs, and one separate set for each individual CPU in the system. The lsrset command lists all resource sets defined. A sample output for the lsrset command follows: # lsrset -av T Name Owner Group Mode CPU Memory Resources r sys/sys0 root system r----- 4 511 sys/sys0 sys/node.00000 sys/mem.00000 sys/cpu.00003 sys/cpu.00002 sys/cpu.00001 sys/cpu.00000 r sys/node.00000 root system r----- 4 511 sys/sys0 sys/node.00000 sys/mem.00000 sys/cpu.00003 sys/cpu.00002 sys/cpu.00001 sys/cpu.00000 r sys/mem.00000 root system r----- 0 511 sys/mem.00000 r sys/cpu.00003 root system r----- 1 0 sys/cpu.00003 r sys/cpu.00002 root system r----- 1 0 sys/cpu.00002 r sys/cpu.00001 root system r----- 1 0 sys/cpu.00001 r sys/cpu.00000 root system r----- 1 0 sys/cpu.00000 290 IBM ^ Certification Study Guide - AIX 5L Problem Determination Tools and Techniques
10.5.6 rset registry As mentioned previously, some resource sets in AIX 5L are created, by default, for memory and CPU. It is possible to create different resource sets by grouping two or more resource sets and storing the definition in the rset registry. The rset registry services enable system administrators to define and name resource sets so that they can then be used by other users or applications. In order to alleviate the risks of name collisions, the registry supports a two-level naming scheme. The name of a resource set takes the form name_space/rset_name. Both the name space and rset_name may each be 255 characters in size, are case sensitive, and may contain only upper and lower case letters, numbers, underscores, and periods. The name space of sys is reserved by the operating system and used for rset definitions that represent the resources of the system. The SMIT rset command has options to list, remove, or show a specific resource set used by a process and the management tools, as shown in Figure 10-9. Figure 10-9 SMIT main panel for resource set management To create, delete, or change a resource set in the rset registry, you must select the Manage Resource Set Database item in the SMIT panel. In this panel, it is also possible to reload the rset registry definitions to make all changes available to the system. Figure 10-10 on page 292 shows the SMIT panel for rset registry management. Chapter 10. Performance problem determination 291
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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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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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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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