IBM AIX Continuous Availability Features - IBM Redbooks

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* will result in error out of read()->entry() */ __auto int auto_var; } thread_var=__arg1; global_var=get_userstring(__arg2,15); global_var1=__arg3; printf("At read()->entry():\n"); printf("\tfile descriptor ====>%d\n", thread_var); printf("\tfile context (15 bytes)====>%s\n", global_var); printf("\tMAX buffer size ====>%d\n", global_var1); /* Valid built-in variables : __pid, __rv * __arg1, __arg2 and __arg2 are not valid here, they are valid only in * read()->entry() */ @@syscall:*:read:exit when ( __pid == $1 ) { printf("At read()->exit(): bytes read=%d by read(%d, %s, %d)\n",__rv, thread_var, global_var, global_var1); } @@END { /* * auto_var not accessible here as its an Automatic variable in clause "read:entry" */ printf("\nthread_var=%d global_var=%s global_var1=%d\n", thread_var, global_var, global_var1); } Example 3-42 displays the C file that will be traced using the Vue script. Example 3-42 Sample C program to be traced #include main() { int x,rc,fd; int buff[4096]; for (x=0; x
Example 3-43 Output of pvue2.e script # ./pvue2.e 356786 lbolt=13454557 At read()->entry(): file descriptor ====>3 file context (15 bytes)====> MAX buffer size ====>4096 At read()->exit(): bytes read=190 by read(3, , 4096) At read()->entry(): file descriptor ====>3 file context (15 bytes)====>#include 4096 At read()->exit(): bytes read=190 by read(3, #include entry(): file descriptor ====>3 file context (15 bytes)====>#include 4096 At read()->exit(): bytes read=190 by read(3, #include entry(): file descriptor ====>3 file context (15 bytes)====>#include 4096 At read()->exit(): bytes read=190 by read(3, #include entry(): file descriptor ====>3 file context (15 bytes)====>#include 4096 At read()->exit(): bytes read=190 by read(3, #include
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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
Page 88 and 89: We tested the installation of an ef
Page 90 and 91: Setting efix state to: STABLE +----
Page 92 and 93: mode, storage keys are called user
Page 94 and 95: Example 3-19 shows the SMIT menu fo
Page 96 and 97: might share a given hardware key. M
Page 98 and 99: KKEY_UPUBLIC, KKEY_FILE_DATA KKEY_U
Page 100 and 101: Note: Kernel keys and keysets, whic
Page 102 and 103: extension key-aware is determining
Page 104 and 105: added a protection gate for the int
Page 106 and 107: } printf("hardware keyset after KER
Page 108 and 109: } param=atoi(*(argv+1)); printf("Te
Page 110 and 111: Load the kernel extension so that a
Page 112 and 113: 3 : 000000000000000A r4 : F10006C00
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 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 162 and 163: sysdumpdev 27 tprof 28 trace 28 trc
Page 164: subsequent reboot 71, 133 SUE 18 Sy
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IBM AIX Continuous Availability Features - IBM Redbooks

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