AIX 5L Problem Determination - IBM Redbooks

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OEM Original Equipment Manufacturer OLAP Online Analytical Processing OLTP Online Transaction Processing ONC+ Open Network Computing OOUI Object-Oriented User Interface OSF Open Software Foundation, Inc. OSL Optimization Subroutine Library OSLp Parallel Optimization Subroutine Library P2SC POWER2 Single/Super Chip PAM Pluggable Authentication Mechanism PAP Privileged Access Password PBLAS Parallel Basic Linear Algebra Subprograms PCI Peripheral Component Interconnect PDT Paging Device Table PDU Power Distribution Unit PE Parallel Environment PEDB Parallel Environment Debugging PEX PHIGS Extension to X PFS Perfect Forward Security PGID Process Group ID PHB Processor Host Bridges PHY Physical Layer PID Process ID PID Process ID PIOFS Parallel Input Output File System PKR Protection Key Registers PMTU Path MTU POE Parallel Operating Environment POP Power-On Password POSIX Portable Operating Interface for Computing Environments POST Power-On Self-test POWER Performance Optimization with Enhanced Risc (Architecture) PPC PowerPC PPM Piecewise Parabolic Method PPP Point-to-Point Protocol PREP PowerPC Reference Platform PSE Portable Streams Environment PSSP Parallel System Support Program PTF Program Temporary Fix PTPE Performance Toolbox Parallel Extensions PTX Performance Toolbox PV Physical Volume PVC Permanent Virtual Circuit PVID Physical Volume Identifier QMF Query Management Facility QoS Quality of Service QP Quadratic Programming RAID Redundant Array of Independent Disks RAM Random Access Memory RAN Remote Asynchronous Node RAS Reliability, Availability, and Serviceability RDB Relational DataBase RDBMS Relational Database Management System RDISC ICMP Router Discovery RDN Relative Distinguished Name 336 IBM ^ Certification Study Guide - AIX 5L Problem Determination Tools and Techniques
RDP Router Discovery Protocol RFC Request for Comments RIO Remote I/O RIP Routing Information Protocol RIPL Remote Initial Program Load RISC Reduced Instruction-Set Computer RMC Resource Monitoring and Control ROLTP Relative Online Transaction Processing RPA RS/6000 Platform Architecture RPC Remote Procedure Call RPL Remote Program Loader RPM Redhat Package Manager RSC RISC Single Chip RSCT Reliable Scalable Cluster Technology RSE Register Stack Engine RSVP Resource Reservation Protocol RTC Real-Time Clock RVSD Recoverable Virtual Shared Disk SA Secure Association SACK Selective Acknowledgments SAN Storage Area Network SAR Solutions Assurance Review SAS Single Attach Station SBCS Single-Byte Character Support ScaLAPACK Scalable Linear Algebra Package SCB Segment Control Block SCSI Small Computer System Interface SCSI-SE SCSI-Single Ended SDLC Synchronous Data Link Control SDR System Data Repository SDRAM Synchronous Dynamic Random Access Memory SE Single Ended SEPBU Scalable Electrical Power Base Unit SGI Silicon Graphics Incorporated SGID Set Group ID SHLAP Shared Library Assistant Process SID Segment ID SIT Simple Internet Transition SKIP Simple Key Management for IP SLB Segment Lookaside Buffer SLIH Second Level Interrupt Handler SLIP Serial Line Internet Protocol SLR1 Single-Channel Linear Recording 1 SM Session Management SMB Server Message Block SMIT System Management Interface Tool SMP Symmetric Multiprocessor SMS System Management Services SNG Secured Network Gateway SOI Silicon-on-Insulator SP IBM RS/6000 Scalable POWER parallel Systems SP Service Processor SPCN System Power Control Network SPEC System Performance Evaluation Cooperative SPI Security Parameter Index Abbreviations and acronyms 337
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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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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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Page 330 and 331: 11.1 Overview 11.1.1 Terminology 11
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Page 360 and 361: SPM System Performance Measurement
Page 364 and 365: Other resources These publications
Page 368 and 369: phase1 figure 23 phase2 15, 24, 36
Page 370 and 371: pc.statd 189 daemons shdaemon 73 te
Page 372 and 373: host name resolution telnet login p
Page 374 and 375: N name resolution diagnostic 185 pr
Page 376 and 377: ecent CPU usage 241 recovering an i
Page 378 and 379: System Resource Controller (SRC) 13
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