IBM AIX Continuous Availability Features - IBM Redbooks

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sysdumpdev 27 tprof 28 trace 28 trcctl 28 trcevgrp 28 trcrpt 28 tunchange 49 tuncheck 49 tundefault 49 tunrestore 49 tunsave 49 vmo 50 vmstat 49 component dump 25, 64, 68, 140 Component Trace (CT) 23, 29, 56, 140 compressed dump file 27 Concurrent update 55, 71, 140 command 72 package file 73 terminology 71 Continuous availability 1, 4–5, 8 core file 35 core file control 35 CPU deallocation 13 CPU Guard 12 CPU_ALLOC_ABORTED entry 59 D data storage interrupt 21 DB2 core 100 Dead gateway detection 36–37 default amount 57–58 device driver 29 DGD 38 Disaster recovery (DR) 2–3 DLPAR 12 dynamic kernel tuning 50 dynamic processor deallocation 13 Dynamic tracking of fibre channel devices 47 E Efix Attribute 74, 76 Efix Description 75 efix file 74–75 Total number 75 EFIX Id 73 efix installation 74–75 EFIX label 73–74, 76 EFIX package 73–75 Efix State 75 EFIXES Menu 76 Electronic Service Agent 48 Enhanced Journaled File System (JFS2) 46 entry field 57, 68, 73, 76 select values 73, 77 ERRCHECK_MAXIMAL 126 ERRCHECK_MAXIMAL Disabled 58 error detection 8 error logging 30 148 IBM AIX Continuous Availability Features EtherChannel 36, 38–39 Ethernet link aggregation 17 Extended Error Handling (EEH) 20, 139 F FFDC 7–8, 29 FFDC capability 7 Field Replaceable Unit (FRU) 7 firmware-assisted system 24 First Failure Data Capture (FFDC) 7, 12, 21, 23, 56–57, 126 format minidumps 62 G gated 38 Geographic Logical Volume Manger (GLVM) 44 GLVM 44 H hardware key mapping 83 hardware keysets 98–99 heap registration 134 heap size 26 hot-swap disks 40 I IBM System p p5-595 server 7 inetd.conf 33 int argc 93–94 iptrace 29 J Journaled File System (JFS) 46 K kdb context 71 kernel component 29 kernel extension 29, 64, 71–72 Exporting file 93 kernel key 79 kernel keys 22 kernel no-execute protection 20 kernel recovery framework 19 kk VMM_PMAP 109 L LDAP 51 Lightweight Memory Trace (LMT) 8, 23, 30, 55, 57–58, 140 List EFIXES 72 Live application mobility 52 live dump 24–25, 64–65, 68–69 Live partition mobility 52 LMT buffer 59
LMT file 60 Logical Volume Manager (LVM) 44 ls core 105–106 LUN subcomponent 71 LVM 17 LVM mirroring 17 LVM quorum 44 M Machine Status Table (MST) 63, 109 memory page deallocation 14 Memory Persistent Deallocation 14 minidump 27, 55, 61–62 minidump entry 62 MINIDUMP_LOG 62 MPIO 17, 46 multibos utility 41 Multipath I/O (MPIO) 46 Multipath IP routing 36–37 N Network Installation Manager (NIM) 41–42 NIM server 41 NVRAM 27 O operating system 7, 9 reboot 102 operating system error 8 P parallel dump 27 partition reboot 135 Passive dead gateway detection 38 path control module (PCM) 46 pax file 61 PCI hot plug management 15 performance monitoring 48 PFT entry 110 POSIX trace 29, 55, 140 POWER5 system 59 probe actions 113 probe event 113 probe location 113 Probe manager 113 probe point 113 probe point specification 115–116 probe type 113 probevctrl command 114 ProbeVue 30, 55 action block 115–116 dynamic tracing benefits and restrictions 111 interval probe manager 118 introduction 111 predicate 116 probe actions 113 probe event 113 probe location 113 Probe manager 117 probe manager 113 probe point 113 probe point specification 115–116 probe type 113 probevctrl command 114 probevue command 114 ProbeVue example 119 ProbeVue Terminology 113 system call probe manager 117 user function probe manager 117 Vue functions 118 Vue overview 114 Vue program 114 Vue Programming Language 113 Vue script 114–115 probevue command 114 processor utilization register (PURR) 28 protection gate corresponding kernel keys 109 R RAID 17, 43 rare event 57 read/write access 98 read/write attribute 107 Reboot Processing 75 Redbooks Web site 146 Contact us xii Redzone 128–129 Reliability, Availability, and Serviceability (RAS) 22, 51, 56, 58, 60 Reliable Scalable Cluster Technology (RSCT) 15, 139 remaining CPU 62 resource manager 16 Resource Monitoring and Control (RMC) 15, 141 RMC 16 routed 38 RSCT 16 RTEC level 127, 130 alloc.xmdbg 130 Run time error checking xmalloc debug enhancement 126 Run-Time Error Checking (RTEC) 8, 20, 23, 56, 126, 139 S SC_AIX_UKEYS 107 SCSI disc 65 Second Failure Data Capture (SFDC) 58, 102 SIGSEGV 106 single points of failure (SPOFs) 3 smitty menu 72 SMP 12 Special Uncorrectable Error 18 SRC 14 stack overflow 20 Storage key 55, 79–80 storage key 19, 21 subcomponent 64–65 Index 149
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Front cover IBM AIX Continuous Avai
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Note: Before using this information
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2.3.7 Minidump . . . . . . . . . .
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vi IBM AIX Continuous Availability
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Trademarks The following terms are
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Engineering degree in Computer Scie
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Find out more about the residency p
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1.1 Overview In May 2007, IBM intro
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1.5 Continuous operations Continuou
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1.6.2 Availability 1.6.3 Serviceabi
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IBM has tried to enhance FFDC featu
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10 IBM AIX Continuous Availability
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2.1 System availability AIX is buil
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On AIX 5.3, the only way to persist
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When used on a standalone server (s
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mirrored volume group on the client
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2.2.1 Error checking Run-Time Error
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The PowerPC hardware gives software
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System dumps can also be user-initi
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Live dumps are small dumps that do
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Trace is a valuable tool for observ
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Component Trace uses mechanisms sim
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2.3.14 syslog To display the boot l
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Logging can be added to many of the
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compression: on path specification:
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2.4.4 EtherChannel network traffic
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2.4.6 2-Port Adapter-based Ethernet
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operations) without affecting produ
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Quorum A quorum is a vote of the nu
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2.5.8 Journaled File System-related
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Fast I/O failure is controlled by a
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display its output in a format suit
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For more detailed information about
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54 IBM AIX Continuous Availability
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3.1 AIX Reliability, Availability,
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This means that traditional AIX sys
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used by IBM service personnel, so t
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also be used to obtain a snapshot o
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3.5 Live dump and component dump Li
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lfs filesystem ._0 | NO | ON/3 | OF
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.vmker | YES | ON/3 | OFF/3 .vmpool
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The output of Start a Live Dump is
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Table 3-3 Concurrent update termino
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We tested the installation of an ef
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Setting efix state to: STABLE +----
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mode, storage keys are called user
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Example 3-19 shows the SMIT menu fo
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might share a given hardware key. M
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KKEY_UPUBLIC, KKEY_FILE_DATA KKEY_U
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Note: Kernel keys and keysets, whic
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extension key-aware is determining
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added a protection gate for the int
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} printf("hardware keyset after KER
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} param=atoi(*(argv+1)); printf("Te
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Load the kernel extension so that a
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Page 114 and 115: 3.7.7 User mode protection keys Use
Page 116 and 117: ► The APIs provided by the system
Page 118 and 119: if (!strcmp(*(argv+1),"read")){ if
Page 120 and 121: strlen() at 0xd010da00 _doprnt(??,
Page 122 and 123: int pthread_attr_setukeyset_np (pth
Page 124 and 125: Machine State Save Area iar : 00000
Page 126 and 127: As a consequence, determining the r
Page 128 and 129: A Vue script or Vue program is a pr
Page 130 and 131: ► An optional predicate The predi
Page 132 and 133: 3. Interval probe manager The inter
Page 134 and 135: { int count; count = count +1; prin
Page 136 and 137: ► Errno names ► Signal names
Page 138 and 139: * will result in error out of read(
Page 140 and 141: This places a large part of the bur
Page 142 and 143: Note: The frequency of checks made
Page 144 and 145: Non-fragments 00000066 Promotions 0
Page 146 and 147: immediately after the returned stor
Page 148 and 149: This option should be used with car
Page 150 and 151: 3.9.6 KDB commands for XMDBG ► xm
Page 152 and 153: 138 IBM AIX Continuous Availability
Page 154 and 155: Name AIX version Hardware required
Page 160 and 161: Online resources These Web sites ar
Page 164: subsequent reboot 71, 133 SUE 18 Sy
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