AIX 5L Problem Determination - IBM Redbooks

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Switching between subsystems The option to change/show current print subsystems has been added to the top level Print Spooling menu in SMIT to allow switching between printing subsystems, as shown in Figure 9-5. Figure 9-5 Change/Show Current Print Subsystem option The syntax for the command line option to switch between printer subsystems is: switch.prt [-s print_subsystem] [-d] The valid values for print_subsystem are AIX and SystemV. Running the command with the -d flag will display the current print subsystem. For security reasons, this command is a front-end to the script /usr/aix/bin/switch.prt.subsystem, which will do the following when switching from PowerPC to SystemV printing: ► Ensure that you are not trying to switch to the current system. ► Check to see if all print jobs are terminated. ► Stop qdaemon, writesrv, and lpd daemons, and modifies /etc/inittab so that they do not restart if the system is rebooted. The writesrv daemon allows users to send messages to users on a remote system and receive responses from users on a remote system. The lpd daemon is the remote print server. ► Disable the SMIT menus. ► Switch the Web-based System Manager plug-ins. 224 IBM ^ Certification Study Guide - AIX 5L Problem Determination Tools and Techniques
► Change the lock files from PowerPC to SystemV. ► Remove AIX links and adds SystemV links for the duplicate commands. ► Launch /usr/lib/lp/lpsched to start the SystemV print subsystem. From time to time, you may need to remove old print files in order to free up space in /var file system. For example, execute the following command to remove print files older than seven days: # find /var/spool/lpd/qdir -mtime +7 -type f -exec rm -f{} \; 9.9 Command summary The following sections provide the key commands discussed in this chapter. 9.9.1 The lslicense command The lslicense command displays the number of fixed licenses and the status of the floating licensing. The command has the following syntax: lslicense [ -c ] 9.9.2 The lssrc command The lssrc command obtains the status of a subsystem, a group of subsystems, or a subserver. The command has the following syntax. Subsystem status: lssrc [ -h Host ] { -a | -g GroupName | [ -l ] -s Subsystem | [ -l ] -p SubsystemPID } Subserver status: lssrc [ -h Host ] [ -l ] -t Type [ -p SubsystemPID ] [ -o Object ] [ -P SubserverPID ] Table 9-3 provides a list of commonly used flags and their descriptions. Table 9-3 Commonly used flags of the lssrc command Flag Description -a Lists the current status of all defined subsystems. -g Group Specifies a group of subsystems to get the status for. The command is unsuccessful if the GroupName variable is not contained in the subsystem object class. Chapter 9. System access and printer problem determination 225
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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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6.7.1 Answers 6.8 Exercises The fol
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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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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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