| 1 | #!/bin/ksh |
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| 2 | # IBM_PROLOG_BEGIN_TAG |
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| 3 | # This is an automatically generated prolog. |
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| 4 | # |
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| 5 | # |
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| 6 | # |
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| 7 | # Licensed Materials - Property of IBM |
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| 8 | # |
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| 9 | # (C) COPYRIGHT International Business Machines Corp. 2001,2006 |
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| 10 | # All Rights Reserved |
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| 11 | # |
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| 12 | # US Government Users Restricted Rights - Use, duplication or |
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| 13 | # disclosure restricted by GSA ADP Schedule Contract with IBM Corp. |
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| 14 | # |
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| 15 | # IBM_PROLOG_END_TAG |
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| 16 | # @(#)10 1.39.1.2 src/avs/fs/mmfs/ts/admin/mmchnsd.sh, mmfs, avs_rgpfs24, rgpfs24s005a 6/14/06 14:39:52 |
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| 17 | ############################################################################### |
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| 18 | # |
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| 19 | # Usage: |
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| 20 | # mmchnsd {"DiskDesc[;DiskDesc...]" | -F DescFile} |
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| 21 | # |
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| 22 | # where |
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| 23 | # DiskDesc is a descriptor for the disk to be changed |
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| 24 | # -F DescFile specifies a file containing the disk descriptors for |
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| 25 | # the network shared disks to be changed |
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| 26 | # |
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| 27 | # Notes: |
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| 28 | # You cannot change the name of a disk. |
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| 29 | # |
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| 30 | # Changing the failure group and disk usage is a no-op for mmchnsd. |
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| 31 | # Instead, use the mmchdisk command for this purpose. |
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| 32 | # |
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| 33 | # You must explicitly specify the desired new values |
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| 34 | # for both primary and backup server even if changing |
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| 35 | # only one of them. |
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| 36 | # |
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| 37 | # The following operations are allowed: |
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| 38 | # |
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| 39 | # - Changing the primary and/or backup server for a disk. |
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| 40 | # |
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| 41 | # - Defining a backup server for a disk that up to this |
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| 42 | # moment did not have one. |
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| 43 | # |
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| 44 | # - Deleting the backup server for a disk. |
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| 45 | # |
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| 46 | # - Removing the primary and backup servers for a disk, |
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| 47 | # thereby converting it to a directly-attached disk. |
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| 48 | # |
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| 49 | # - Assigning a primary and an optional backup server to |
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| 50 | # a directly-attached disk. |
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| 51 | # |
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| 52 | ############################################################################### |
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| 53 | |
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| 54 | # Include global declarations and service routines. |
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| 55 | . /usr/lpp/mmfs/bin/mmglobfuncs |
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| 56 | . /usr/lpp/mmfs/bin/mmsdrfsdef |
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| 57 | . /usr/lpp/mmfs/bin/mmfsfuncs |
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| 58 | |
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| 59 | sourceFile="mmchnsd.sh" |
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| 60 | [[ -n $DEBUG || -n $DEBUGmmchnsd ]] && set -x |
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| 61 | $mmTRACE_ENTER "$*" |
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| 62 | |
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| 63 | # Local work files. Names should be of the form: |
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| 64 | # fn=${tmpDir}fn.${mmcmd}.$$ |
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| 65 | |
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| 66 | descfile=${tmpDir}descfile.${mmcmd}.$$ |
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| 67 | existingDisks=${tmpDir}existingDisks.${mmcmd}.$$ |
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| 68 | affectedFileSystems=${tmpDir}affectedFileSystems.${mmcmd}.$$ |
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| 69 | |
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| 70 | LOCAL_FILES=" $descfile $existingDisks $affectedFileSystems " |
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| 71 | |
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| 72 | |
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| 73 | # Local variables |
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| 74 | usageMsg=438 |
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| 75 | noUsageMsg=0 |
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| 76 | hadSuccess=false |
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| 77 | |
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| 78 | |
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| 79 | |
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| 80 | ###################### |
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| 81 | # Mainline processing |
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| 82 | ###################### |
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| 83 | |
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| 84 | |
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| 85 | ###################################### |
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| 86 | # Process the command line arguments. |
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| 87 | ###################################### |
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| 88 | [[ $arg1 = '-?' || $arg1 = '-h' || $arg1 = '--help' || $arg1 = '--' ]] && \ |
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| 89 | syntaxError "help" $usageMsg |
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| 90 | |
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| 91 | [[ $argc -lt 1 ]] && \ |
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| 92 | syntaxError "missingArgs" $usageMsg |
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| 93 | |
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| 94 | if [[ $arg1 != "-F" ]] |
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| 95 | then |
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| 96 | # If the first argument is not -F, it must be a disk descriptor list. |
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| 97 | desclist=$arg1 |
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| 98 | # Ensure that semi-colon is used as a disk name separator. |
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| 99 | [[ "$desclist" = *+([,${BLANKchar}${TABchar}])* ]] && \ |
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| 100 | syntaxError "badSeparator_notSemicolon" $noUsageMsg |
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| 101 | else |
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| 102 | # -F specified. The second argument must be a file name. |
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| 103 | if [[ -z $arg2 ]] |
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| 104 | then |
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| 105 | syntaxError "missingFile" $usageMsg |
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| 106 | else |
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| 107 | # Verify the existence of the file and create our own copy. |
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| 108 | checkUserFile $arg2 $descfile |
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| 109 | [[ $? -ne 0 ]] && cleanupAndExit |
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| 110 | shift |
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| 111 | fi # end of if [[ -z $arg2 ]] |
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| 112 | fi # end of if [[ $arg1 != "-F" ]] |
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| 113 | |
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| 114 | # Move past the required parameters. |
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| 115 | shift 1 |
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| 116 | [[ $# != 0 ]] && syntaxError "extraArg" $usageMsg $1 |
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| 117 | |
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| 118 | |
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| 119 | ##################################################################### |
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| 120 | # Set up trap exception handling and call the gpfsInit function. |
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| 121 | # It will ensure that the local copy of the mmsdrfs and the rest of |
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| 122 | # the GPFS system files are up-to-date and will obtain the sdr lock. |
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| 123 | ##################################################################### |
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| 124 | trap pretrap HUP INT QUIT KILL |
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| 125 | gpfsInitOutput=$(gpfsInit $lockId) |
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| 126 | setGlobalVar $? $gpfsInitOutput |
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| 127 | |
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| 128 | # Determine the lookup order for resolving host names. |
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| 129 | [[ $osName != AIX ]] && resolveOrder=$(setHostResolveOrder) |
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| 130 | |
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| 131 | |
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| 132 | ########################################################### |
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| 133 | # If a descriptor list is specified on the command line, |
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| 134 | # create a file with one disk descriptor per line. |
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| 135 | # Note: If the input is in a file, descfile was created |
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| 136 | # by the checkUserFile function. |
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| 137 | ########################################################### |
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| 138 | if [[ -n $desclist ]] |
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| 139 | then |
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| 140 | # Move the descriptors into a temporary file. |
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| 141 | $rm -f $descfile |
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| 142 | IFS=";" |
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| 143 | for diskDesc in $desclist |
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| 144 | do |
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| 145 | [[ -z $diskDesc ]] && continue |
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| 146 | print -- "$diskDesc" >> $descfile |
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| 147 | checkForErrors "writing to file $descfile" $? |
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| 148 | done # end for diskDesc in $desclist |
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| 149 | IFS="$IFS_sv" |
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| 150 | fi # end of if [[ -n $desclist ]] |
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| 151 | |
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| 152 | |
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| 153 | ######################################################################### |
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| 154 | # Create a new version of the mmsdrfs file with a new generation number. |
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| 155 | # Generate a file containing the names of the nodes in the cluster. |
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| 156 | # Generate files containing the nodes in the different nodesets. |
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| 157 | ######################################################################### |
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| 158 | $rm -f $nodefile $newsdrfs $existingDisks |
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| 159 | IFS=":" |
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| 160 | exec 3<&- |
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| 161 | exec 3< $mmsdrfsFile |
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| 162 | while read -u3 sdrfsLine |
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| 163 | do |
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| 164 | # Parse the line. |
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| 165 | set -f ; set -A v -- - $sdrfsLine ; set +f |
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| 166 | |
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| 167 | IFS="$IFS_sv" # Restore the default IFS settings. |
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| 168 | |
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| 169 | printLine=true # Assume the line will be printed. |
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| 170 | |
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| 171 | # Change some of the fields depending on the type of line. |
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| 172 | case ${v[$LINE_TYPE_Field]} in |
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| 173 | |
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| 174 | $VERSION_LINE ) # this is the global header line |
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| 175 | # Increment the generation number |
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| 176 | newGenNumber=${v[$SDRFS_GENNUM_Field]}+1 |
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| 177 | v[$SDRFS_GENNUM_Field]=$newGenNumber |
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| 178 | ;; |
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| 179 | |
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| 180 | $MEMBER_NODE ) # this line describes a node |
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| 181 | # Add the node to the file with all nodes in the cluster. |
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| 182 | print -- "${v[$REL_HOSTNAME_Field]}" >> $nodefile |
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| 183 | checkForErrors "writing to file $nodefile" $? |
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| 184 | ;; |
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| 185 | |
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| 186 | $SG_DISKS ) # this line describes a disk that belongs to some file system |
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| 187 | # Generate a file with SG_DISKS lines for all disks in the cluster. |
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| 188 | print -- $sdrfsLine >> $existingDisks |
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| 189 | checkForErrors "writing to file $existingDisks" $? |
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| 190 | printLine=false |
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| 191 | ;; |
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| 192 | |
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| 193 | * ) # Pass all other lines without a change. |
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| 194 | ;; |
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| 195 | |
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| 196 | esac # end Change some of the fields |
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| 197 | |
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| 198 | # Build and write the line to the new mmsdrfs file. |
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| 199 | if [[ $printLine = true ]] |
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| 200 | then |
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| 201 | print_newLine >> $newsdrfs |
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| 202 | checkForErrors "writing to file $newsdrfs" $? |
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| 203 | fi |
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| 204 | |
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| 205 | IFS=":" # Change the separator back to ":" for the next iteration. |
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| 206 | |
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| 207 | done # end while read -u3 sdrfsLine |
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| 208 | |
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| 209 | IFS="$IFS_sv" # Restore the default IFS settings. |
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| 210 | |
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| 211 | |
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| 212 | # Give up if there are no NSDs in the cluster. |
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| 213 | if [[ ! -s $existingDisks ]] |
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| 214 | then |
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| 215 | # Issue message that the requested disks are not known to GPFS. |
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| 216 | printErrorMsg 481 $mmcmd |
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| 217 | cleanupAndExit |
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| 218 | fi |
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| 219 | |
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| 220 | |
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| 221 | ######################################################## |
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| 222 | # Process the descriptors with the new disk attributes. |
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| 223 | ######################################################## |
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| 224 | foundErrors=false |
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| 225 | $rm -f $affectedFileSystems |
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| 226 | exec 3<&- |
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| 227 | exec 3< $descfile |
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| 228 | while read -u3 mmDiskDesc |
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| 229 | do |
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| 230 | # Skip empty and comment lines. |
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| 231 | [[ $mmDiskDesc = *([$BLANKchar$TABchar]) ]] && continue |
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| 232 | [[ $mmDiskDesc = *([$BLANKchar$TABchar])#* ]] && continue |
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| 233 | |
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| 234 | # Parse mmDiskDesc to get the name of the disk. |
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| 235 | IFS=':' |
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| 236 | set -f ; set -- $mmDiskDesc ; set +f |
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| 237 | diskName=$1 |
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| 238 | IFS="$IFS_sv" |
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| 239 | |
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| 240 | if [[ -z $diskName ]] |
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| 241 | then |
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| 242 | # The disk name must be specified in the disk descriptor. |
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| 243 | printErrorMsg 23 $mmcmd |
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| 244 | |
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| 245 | # Show the bad descriptor. |
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| 246 | printErrorMsg 386 $mmcmd "$mmDiskDesc" |
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| 247 | |
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| 248 | # The command will fail, but before giving up, we will check the |
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| 249 | # remainder of the descriptors to flush out as many errors as possible. |
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| 250 | foundErrors=true |
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| 251 | [[ $sdrLocked = yes ]] && \ |
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| 252 | freeLockOnServer $primaryServer $ourNodeNumber >/dev/null |
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| 253 | sdrLocked=no |
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| 254 | |
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| 255 | # Move to the next descriptor. |
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| 256 | continue |
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| 257 | fi |
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| 258 | |
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| 259 | # Locate and extract the SG_DISK line for this disk. |
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| 260 | $rm -f $tmpfile |
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| 261 | currentDiskLine=$($awk -F: ' \ |
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| 262 | # If the line is for our disk, assigned it to currentDiskLine. \ |
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| 263 | # Do not put the line in the temp file. \ |
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| 264 | $'$DISK_NAME_Field' == "'$diskName'" { \ |
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| 265 | { print $0 } \ |
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| 266 | { next } \ |
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| 267 | } \ |
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| 268 | # If the line is for some other disk, add it to tmpfile. \ |
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| 269 | { print $0 >> "'$tmpfile'" } \ |
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| 270 | ' $existingDisks) |
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| 271 | checkForErrors awk $? |
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| 272 | |
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| 273 | # Prepare the existingDisks file for the next iteration. |
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| 274 | # It will contain all of its original lines except the line |
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| 275 | # that describes the disk that is currently being processed. |
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| 276 | $touch $tmpfile # Ensure file exists even if empty. |
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| 277 | $mv $tmpfile $existingDisks |
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| 278 | checkForErrors "mv $tmpfile $existingDisks" $? |
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| 279 | |
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| 280 | # If not found, issue an appropriate error message. |
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| 281 | if [[ -z $currentDiskLine ]] |
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| 282 | then |
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| 283 | # Check whether the disk was processed earlier. |
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| 284 | alreadyProcessed=$(getDiskInfo $DISK_NAME_Field $diskName $newsdrfs) |
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| 285 | if [[ -n $alreadyProcessed ]] |
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| 286 | then |
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| 287 | # This disk was already processed; it must be a duplicate entry. |
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| 288 | printErrorMsg 88 $mmcmd $diskName |
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| 289 | else |
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| 290 | # Print error stating disk descriptor should refer to an existing NSD. |
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| 291 | printErrorMsg 415 $mmcmd "$mmDiskDesc" |
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| 292 | fi |
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| 293 | |
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| 294 | # The command will fail, but before giving up, we will check the |
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| 295 | # remainder of the descriptors to flush out as many errors as possible. |
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| 296 | foundErrors=true |
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| 297 | [[ $sdrLocked = yes ]] && \ |
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| 298 | freeLockOnServer $primaryServer $ourNodeNumber >/dev/null |
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| 299 | sdrLocked=no |
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| 300 | |
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| 301 | # Move to the next descriptor. |
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| 302 | continue |
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| 303 | |
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| 304 | fi # end of if [[ -z $currentDiskLine ]] |
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| 305 | |
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| 306 | # Find out the file system and nodeset to which this disk belongs. |
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| 307 | # Parse the line. |
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| 308 | IFS=":" |
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| 309 | set -f ; set -A v -- - $currentDiskLine ; set +f |
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| 310 | IFS="$IFS_sv" |
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| 311 | print -- "${v[$DEV_NAME_Field]}" >> $affectedFileSystems |
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| 312 | checkForErrors "writing to file $affectedFileSystems" $? |
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| 313 | |
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| 314 | # Check the correctness of the disk descriptor. If everything is OK, |
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| 315 | # validateAndConvertNsdDescriptor will create an SG_DISKS line with |
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| 316 | # the new parameters for the disk. |
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| 317 | validateDescriptorOutput=$(validateAndConvertNsdDescriptor "$mmDiskDesc" \ |
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| 318 | $currentDiskLine $CHANGE_NSD ${v[$NODESETID_Field]} NULL) |
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| 319 | rc=$? |
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| 320 | if [[ $rc -ne 0 ]] |
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| 321 | then |
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| 322 | # If an error was found, the validate routine issued a message. |
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| 323 | # We will now print the entire descriptor to help the guy some more. |
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| 324 | printErrorMsg 386 $mmcmd "$mmDiskDesc" |
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| 325 | |
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| 326 | # The command will fail, but before giving up, we will check the remainder |
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| 327 | # of the descriptors to flush out as many errors as possible. |
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| 328 | foundErrors=true |
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| 329 | [[ $sdrLocked = yes ]] && \ |
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| 330 | freeLockOnServer $primaryServer $ourNodeNumber >/dev/null |
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| 331 | sdrLocked=no |
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| 332 | |
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| 333 | else |
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| 334 | # If the descriptor seems to be OK, parse the output |
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| 335 | # from the validateAndConvertNsdDescriptor routine. |
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| 336 | set -f ; set -- $validateDescriptorOutput ; set +f |
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| 337 | updatedDiskLine="$1" |
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| 338 | |
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| 339 | #esjrm Add tspreparedisk connectivity verification ??? |
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| 340 | #esjrm Do it based on the pvid (see backup server checking in mmcrnsd) |
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| 341 | #esjrm Make it conditional on some input flag ( -v yes|no ??) |
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| 342 | #esjrm Is this the right place ? |
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| 343 | |
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| 344 | # Add the SG_DISKS line for the disk to the mmsdrfs file. |
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| 345 | print -- $updatedDiskLine >> $newsdrfs |
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| 346 | checkForErrors "writing to file $newsdrfs" $? |
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| 347 | fi # end of if [[ $rc -ne 0 ]] |
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| 348 | done # end of while read -u3 mmDiskDesc |
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| 349 | |
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| 350 | |
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| 351 | # Give up if there were errors with one or more of the descriptors. |
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| 352 | if [[ $foundErrors = true ]] |
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| 353 | then |
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| 354 | # Command failed. |
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| 355 | printErrorMsg 389 $mmcmd |
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| 356 | cleanupAndExit |
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| 357 | fi |
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| 358 | |
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| 359 | |
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| 360 | ################################################ |
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| 361 | # Lock the gpfs object to prevent daemons |
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| 362 | # from starting while things are being changed. |
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| 363 | ################################################ |
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| 364 | [[ $getCredCalled = no ]] && getCred |
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| 365 | setRunningCommand "$mmcmd" $primaryServer |
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| 366 | checkForErrors setRunningCommand $? |
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| 367 | gpfsLocked=yes |
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| 368 | |
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| 369 | |
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| 370 | ################################################## |
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| 371 | # Verify all affected file systems are unmounted. |
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| 372 | ################################################## |
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| 373 | $sort -u -o $affectedFileSystems $affectedFileSystems |
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| 374 | checkForErrors "sort -u $affectedFileSystems" $? |
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| 375 | |
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| 376 | exec 3<&- |
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| 377 | exec 3< $affectedFileSystems |
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| 378 | while read -u3 fsLine |
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| 379 | do |
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| 380 | set -f ; set -- $fsLine ; set +f |
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| 381 | fsToCheck=$1 |
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| 382 | |
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| 383 | [[ $fsToCheck = $NO_DEVICE ]] && continue |
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| 384 | |
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| 385 | # Make sure the file system is not mounted on any of the nodes. |
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| 386 | $mmcommon onactive $preferredNode $nodefile \ |
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| 387 | $NO_FILE_COPY $fsToCheck $CHECK_ALL $NO_LINK $MOUNT_CHECK_ONLY 2>$errMsg |
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| 388 | rc=$? |
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| 389 | if [[ $rc -eq $MM_FsMounted ]] |
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| 390 | then |
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| 391 | # File system is still mounted; messages issued by mmcommon. |
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| 392 | cleanupAndExit |
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| 393 | elif [[ $rc -eq $MM_DaemonDown ]] |
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| 394 | then |
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| 395 | # GPFS is down on all nodes that we care about; that's just fine. |
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| 396 | rc=0 |
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| 397 | elif [[ $rc -eq $MM_ConnectionReset ]] |
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| 398 | then |
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| 399 | # An internode connection was reset. |
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| 400 | printErrorMsg 257 $mmcmd |
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| 401 | # The command failed. |
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| 402 | printErrorMsg 389 $mmcmd |
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| 403 | cleanupAndExit $rc |
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| 404 | elif [[ $rc -ne 0 ]] |
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| 405 | then |
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| 406 | # An unexpected error occurred during the mount check. |
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| 407 | if [[ -s $errMsg ]] |
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| 408 | then |
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| 409 | # Show the error messages from the daemon. |
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| 410 | $cat $errMsg 1>&2 |
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| 411 | else |
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| 412 | # The mount check failed and there were no messages from the daemon. |
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| 413 | printErrorMsg 171 $mmcmd "mount check for $fsToCheck" $rc |
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| 414 | fi |
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| 415 | # The command was unable to determine whether the file system is mounted. |
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| 416 | printErrorMsg 564 $mmcmd $fsToCheck |
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| 417 | cleanupAndExit $rc |
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| 418 | fi # end if [[ $rc -eq $MM_FsMounted ]] |
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| 419 | $rm -f $errMsg |
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| 420 | |
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| 421 | done # end of while read -u3 fsLine |
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| 422 | |
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| 423 | |
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| 424 | #################################################### |
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| 425 | # Put the unchanged disks back in the mmsdrfs file. |
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| 426 | #################################################### |
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| 427 | $cat $existingDisks >> $newsdrfs |
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| 428 | checkForErrors "cat $existingDisks >> $newsdrfs" $? |
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| 429 | |
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| 430 | |
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| 431 | ############################################ |
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| 432 | # Sort the new version of the mmsdrfs file. |
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| 433 | ############################################ |
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| 434 | LC_ALL=C $SORT_MMSDRFS $newsdrfs -o $newsdrfs |
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| 435 | |
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| 436 | |
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| 437 | #################################################### |
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| 438 | # Replace the mmsdrfs file. This makes the changes |
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| 439 | # to the disks visible to the rest of the world. |
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| 440 | #################################################### |
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| 441 | trap "" HUP INT QUIT KILL |
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| 442 | gpfsObjectInfo=$(commitChanges \ |
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| 443 | $FREE_DISK $nsId $gpfsObjectInfo $newGenNumber $newsdrfs $primaryServer) |
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| 444 | rc=$? |
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| 445 | if [[ $rc -ne 0 ]] |
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| 446 | then |
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| 447 | # We were unable to replace the file in the sdr. |
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| 448 | printErrorMsg 381 $mmcmd |
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| 449 | cleanupAndExit |
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| 450 | fi |
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| 451 | |
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| 452 | |
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| 453 | ################## |
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| 454 | # Unlock the sdr. |
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| 455 | ################## |
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| 456 | [[ $sdrLocked = yes ]] && \ |
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| 457 | freeLockOnServer $primaryServer $ourNodeNumber >/dev/null |
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| 458 | sdrLocked=no |
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| 459 | trap posttrap HUP INT QUIT KILL |
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| 460 | |
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| 461 | |
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| 462 | ################################################################# |
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| 463 | # Propagate the new mmsdrfs file. This process is asynchronous. |
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| 464 | ################################################################# |
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| 465 | propagateSdrfsFile async $nodefile $newsdrfs $newGenNumber rereadnsd |
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| 466 | |
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| 467 | ################################################### |
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| 468 | # If installed, invoke the syncfsconfig user exit. |
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| 469 | ################################################### |
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| 470 | if [[ -x $syncfsconfig ]] |
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| 471 | then |
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| 472 | print -- "$mmcmd: Starting $syncfsconfig ..." |
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| 473 | $syncfsconfig |
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| 474 | print -- "$mmcmd: $syncfsconfig finished." |
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| 475 | fi |
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| 476 | |
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| 477 | cleanupAndExit 0 |
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| 478 | |
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