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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