IBM AIX Continuous Availability Features - IBM Redbooks

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Online resources These Web sites are also relevant as further information sources: ► POWER6 Availability white paper http://www-05.ibm.com/cz/power6/files/zpravy/WhitePaper_POWER6_availabilty.PDF ► Dynamic CPU deallocation article in IBM Systems Journal http://www.research.ibm.com/journal/sj/421/jann.html ► AIX V5.3 documentation page http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp ► IBM Systems and Technology Group Technotes (FAQs): Minidump http://igets3.fishkill.ibm.com/DCF/isg/isgintra.nsf/all/T1000676?OpenDocument&H ighlight=0,minidump ► AIX Security http://www.redbooks.ibm.com/redbooks/pdfs/sg247430.pdf How to get IBM Redbooks publications Help from IBM You can search for, view, or download IBM Redbooks publications, Redpapers, Technotes, draft publications and Additional materials, as well as order hardcopy books, at this Web site: ibm.com/redbooks IBM Support and downloads ibm.com/support IBM Global Services ibm.com/services 146 IBM AIX Continuous Availability Features
Index Numerics 64-bit kernel 58–59, 63, 83, 101 64K page 132 A action block 123 Active dead gateway detection 38 AIX 5.3 126, 132–133 AIX capability 56 AIX mobility features 52 AIX Reliability, Availability, and Serviceability (RAS) components hierarchy 56 AIX service 57 AIX system 57–58, 60–61 dump 60 outage 8 AIX V5.3 ML3 61 TL3 8 TL5 8, 56 AIX V6.1 9, 55 default checking level 126 release 83 AIX Version 139 5.3 107 5.3 ML3 8 V5.3 ML3 56 AIX6.1 XMDBG 126 alloc.xmdb g 126–128 alloc_record 131 alloc_trailer 132 component 135, 137 def_free_frag 133 deferred_count 135 deferred_free 134 doublepage_promote 133 errcheckdetail 129 errchecklevel 130 errcheckon 126 large_trailer 132 medsevdisposition 132 memleak_count 135 memleak_pct 134 minsize 135 promote_all 133 redzone 134 reset_errlog_count 135 RTEC level 127 ruin_all 131 skhp_reg 137 small_trailer 132 vmmcheck 134 Alternate disk installation 40–41 alternate processor recovery 13 AMR value 99 API 98 Authority Mask Register (AMR) 21 autonomic computing 11 aware component 64 B base kernel 71–72 C Capacity on Demand 14 cluster security services 16 commands /usr/sbin/bosboot 19 alog 31 cfgmgr 31 chcore 35 chdev 12 chps 21 chvg 43 ctctrl 30 curt 28 dmpuncompress 27 dumpctrl 24, 26 errctrl 13 errdemon 31 errlast 31 errlogger 31 errpt 31 filemon 49 fileplace 49 ioo 49–50 iostat 49 ipreport 28 iptrace 28 livedumpstart 26 lparstat 49 lsconf 49 lscore 35 lvmstat 49 mdmprpt 62 mkps 21 multibos 41 netstat 49 nfso 50 no 49–50 perfpmr 49 pprof 28 probevue 30 raso 50–51 sar 49 schedo 50 snap 24, 61 splat 28 © Copyright IBM Corp. 2008. All rights reserved. 147
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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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Page 114 and 115: 3.7.7 User mode protection keys Use
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Page 118 and 119: if (!strcmp(*(argv+1),"read")){ if
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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
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Page 132 and 133: 3. Interval probe manager The inter
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Page 136 and 137: ► Errno names ► Signal names
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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
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Page 150 and 151: 3.9.6 KDB commands for XMDBG ► xm
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Page 154 and 155: Name AIX version Hardware required
Page 162 and 163: sysdumpdev 27 tprof 28 trace 28 trc
Page 164: subsequent reboot 71, 133 SUE 18 Sy
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