AIX 5L Problem Determination - IBM Redbooks

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Which of the following commands should be used to successfully add the 9.1-GB drive to vg00? A. chvg -t -2 vg00 B. synclvodm -v vg00 C. lqueryvg -Atp hdisk6 D. redefinevg -d hdisk6 vg00 3. Which of the following should be avoided with regards to paging space? A. Placing paging space on non-rootvg disk B. Placing paging spaces on non-SCSI drives C. Using paging space less than the RAM size D. Using multiple paging spaces on the same drive 4. During a routine check of an error log, the system is receiving SSA errors. The error log reports an SSA link open failure error. The system is working fine, but the SSA errors keep repeating every 30 minutes. All of the following are steps to fix the error except: A. Run cfgmgr -v. B. Check the cabling. C. Run link verification. D. Check the microcode for the SSA drive. 5. Which of the following statements best describes the relationship between a logical volume and a journaled file system? A. Increasing the size of a logical volume also increases the size of the file system. B. Increasing the size of a file system requires file systems to be unmounted first. C. Increasing the size of a file system also increases the size of the logical volume when necessary. D. Reducing the size of a logical volume requires reducing the size of the file system first. 174 IBM ^ Certification Study Guide - AIX 5L Problem Determination Tools and Techniques
6. Which of the following statements is false regarding the process for administering file systems? A. A logical volume must be created prior to defining a file system. B. A file system must be empty before it can be removed. C. Defining a file system imposes a structure on a logical volume. D. Removing a file system using rmfs automatically removes the underlying logical volume. Chapter 7. LVM, file system, and disk problem determination 175
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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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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
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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
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Page 180 and 181: ► Understanding enhanced journale
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Page 186 and 187: 7.4.10 Disk quota Pseudo file name
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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
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Page 202 and 203: As you can see, the output shows th
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Page 216 and 217: Flags Description -s host Records p
Page 218 and 219: 8.6 Quiz Table 8-8 Commonly used fl
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Page 232 and 233: 9.4.3 A full file system uid=0(root
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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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