source: gpfs_3.1_ker2.6.20/lpp/mmfs/bin/mmdsm

Last change on this file was 16, checked in by rock, 18 years ago
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1#!/bin/ksh
2# IBM_PROLOG_BEGIN_TAG
3# This is an automatically generated prolog.
4# 
5# 
6# 
7# Licensed Materials - Property of IBM
8# 
9# (C) COPYRIGHT International Business Machines Corp. 2004,2005
10# All Rights Reserved
11# 
12# US Government Users Restricted Rights - Use, duplication or
13# disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
14# 
15# IBM_PROLOG_END_TAG
16# @(#)17 1.14 src/avs/fs/mmfs/ts/admin/mmdsm.sh, mmfs, avs_rgpfs24, rgpfs240610b 7/21/05 01:45:41
17#############################################################################
18#
19# Common interface module for DSM support.
20#
21# Usage:  mmdsm <action> <arg1> <arg2> ...
22#
23# where action is one of the following:
24#
25#   dsmGetClusterType - retrieve the GPFS cluster type
26#   dsmGetNodeNumber  - retrieve the local node's GPFS node number
27#   dsmGetNodesetId   - retrieve the nodeset to which this node belongs
28#   dsmGetNodeCount   - retrieve the number of nodes in the nodeset
29#   dsmPutHsmdata     - store the HSM data for a given nodeset
30#   dsmGetHsmdata     - retrieve the HSM data for a given nodeset
31#   dsmPutHsmversion  - store the version information for the HSM data
32#   dsmGetHsmversion  - retrieve the version information for the HSM data
33#   dsmGetConfigServerState - verify both config servers are up
34#   dsmGetFileSystems       - create a list of all file systems
35#   dsmIsFileSystemLocal    - check if a file system is local or remote
36#
37# For additional information and description of arguments and
38# return codes, see the prolog of the corresponding function.
39#
40#############################################################################
41
42# Include global declarations and service routines.
43. /usr/lpp/mmfs/bin/mmglobfuncs
44. /usr/lpp/mmfs/bin/mmsdrfsdef
45
46sourceFile="mmdsm.sh"
47[[ -n $DEBUG || -n $DEBUGmmdsm ]] && set -x
48$mmTRACE_ENTER "$*"
49
50# To get mmdsm error messages, specify a file name in the dsmLog variable.
51# If this variable is not defined, all error messages will be discarded.
52[[ -z $dsmLog ]] && dsmLog="/dev/null"
53
54# Local work files.  Names should be of the form:
55#   fn=${tmpDir}fn.${mmcmd}.$$
56
57LOCAL_FILES=" "
58
59
60# Local variables
61rc=0
62
63
64# Local functions
65
66
67###########################################################################
68#
69# Function:  Called if there is an interrupt before changes are committed.
70#            Removes temporary files and unlocks the sdr if necessary.
71#
72# Input:     None
73#
74# Output:    None
75#
76# Returns:   Exits with code 2
77#
78###########################################################################
79function localPretrap
80{
81  typeset sourceFile="mmdsm.sh"
82  [[ -n $DEBUG || -n $DEBUGlocalPretrap ]] && set -x
83  $mmTRACE_ENTER "$*"
84  typeset ec=0
85
86  trap "" HUP INT QUIT KILL    # Disable traps so we won't get interrupted.
87
88  [[ -z $MMMODE ]] && determineMode 2>> $dsmLog
89
90  # We come here if an interrupt was received and
91  # no changes have been made to the sdrfs file.
92  # Display any buffered error messages that might be there.
93  [[ -s $errMsg ]] && $cat $errMsg 1>&2 2>> $dsmLog
94  printErrorMsg 306 $mmcmd 2>> $dsmLog
95  $rm -f $GLOBAL_FILES $LOCAL_FILES
96
97  if [[ $gpfsLocked = yes ]]
98  then
99    setRunningCommand null $primaryServer
100    ec=$?
101    if [[ $ec -ne 0 ]]
102    then
103      printErrorMsg 171 $mmcmd "function setRunningCommand" $ec 2>> $dsmLog
104    fi
105  fi
106
107  [[ $envLocked = yes ]] &&  \
108    freeEnvLock >/dev/null 2>> $dsmLog
109  envLocked=no
110
111  [[ $sdrLocked = yes ]] &&  \
112    freeLockOnServer $primaryServer $ourNodeNumber >/dev/null 2>> $dsmLog
113  sdrLocked=no
114
115  trap - HUP INT QUIT KILL     # Restore interrupts.
116  exit 2
117
118}  #--------- end of function localPretrap ---------------------------
119
120
121###########################################################################
122#
123# Function:  Called if there is an interrupt after changes were committed.
124#            Removes temporary files and unlocks the sdr if necessary.
125#
126# Input:     None
127#
128# Output:    None
129#
130# Returns:   Exits with code 2
131#
132###########################################################################
133function localPosttrap
134{
135  typeset sourceFile="mmdsm.sh"
136  [[ -n $DEBUG || -n $DEBUGlocalPosttrap ]] && set -x
137  $mmTRACE_ENTER "$*"
138  typeset ec=0
139
140  trap "" HUP INT QUIT KILL    # Disable traps so we won't get interrupted.
141
142  [[ -z $MMMODE ]] && determineMode 2>> $dsmLog
143
144  # Interrupt received: changes not propagated.
145  # Display any buffered error messages that might be there.
146  [[ -s $errMsg ]] && $cat $errMsg 1>&2 2>> $dsmLog
147  printErrorMsg 32 $mmcmd 2>> $dsmLog
148  $rm -f $GLOBAL_FILES $LOCAL_FILES
149
150  if [[ $gpfsLocked = yes ]]
151  then
152    setRunningCommand null $primaryServer
153    ec=$?
154    if [[ $ec -ne 0 ]]
155    then
156      printErrorMsg 171 $mmcmd "function setRunningCommand" $ec 2>> $dsmLog
157    fi
158  fi
159
160  [[ $envLocked = yes ]] &&  \
161    freeEnvLock >/dev/null 2>> $dsmLog
162  envLocked=no
163
164  [[ $sdrLocked = yes ]] &&  \
165    freeLockOnServer $primaryServer $ourNodeNumber >/dev/null 2>> $dsmLog
166  sdrLocked=no
167
168  trap - HUP INT QUIT KILL     # Restore interrupts.
169  exit 2
170
171}  #--------- end of function localPosttrap ---------------------------
172
173
174##########################################################################
175#
176# Function:  Retrieve the name of the nodeset to which this node belongs.
177#
178# Input:     None.
179#
180# Output:    Nodeset identifier or zero.
181#
182# Returns:   0 - no errors encountered
183#            non-zero - unexpected error
184#
185##########################################################################
186function dsmGetNodesetId  #
187{
188  typeset sourceFile="mmdsm.sh"
189  [[ -n $DEBUG || -n $DEBUGdsmGetNodesetId ]] && set -x
190
191  # Ensure that the local copy of the mmsdrfs is up-to-date.
192  gpfsInitOutput=$(gpfsInit nolock)
193  setGlobalVar $? $gpfsInitOutput
194
195  # Display the nodeset name.
196  print -- "$nsId"
197
198  return 0
199
200}  #------------ end function dsmGetNodesetId -----------------
201
202
203##########################################################################
204#
205# Function:  Retrieve the number of nodes in the current nodeset.
206#
207# Input:     None.
208#
209# Output:    Number of nodes.
210#
211# Returns:   0 - no errors encountered
212#            non-zero - unexpected error
213#
214##########################################################################
215function dsmGetNodeCount  #
216{
217  typeset sourceFile="mmdsm.sh"
218  [[ -n $DEBUG || -n $DEBUGdsmGetNodeCount ]] && set -x
219
220  # Ensure that the local copy of the mmsdrfs is up-to-date.
221  gpfsInitOutput=$(gpfsInit nolock)
222  setGlobalVar $? $gpfsInitOutput
223
224  # Find out the number of nodes in the local nodeset.
225  # The result is displayed on stdout.
226  getNodesetInfo $NODE_COUNT_Field $nsId $mmsdrfsFile
227
228  return 0
229
230}  #------------ end function dsmGetNodeCount -----------------
231
232
233##########################################################################
234#
235# Function:  Append the specified file with HSM data to the mmsdrfs file.
236#
237# Input:     $1 - nodeset to which the data pertains
238#            $2 - path name of file to store in the sdr or DELETE
239#            $3 - path name of file with version information (optional)
240#            $4 - mmsdrfs file version (generation) number (optional)
241#
242# Returns:   0 - no errors encountered
243#            non-zero - unexpected error
244#
245##########################################################################
246function dsmPutHsmdata  # <nodesetId> <inputFile> [<versionFile> [<genNumber>]]
247{
248  typeset sourceFile="mmdsm.sh"
249  [[ -n $DEBUG || -n $DEBUGdsmPutHsmdata ]] && set -x
250  typeset hsmNodesetId=$1
251  typeset inputFile=$2
252  typeset versionFile=$3
253  typeset genNumber=$4
254
255  typeset gpfsInitOutput sdrfsLine printLine inLine rc
256  typeset replaceVersionInfo=''
257  typeset removeHSMdata=''
258  typeset -i lineNumber=0
259
260  [[ -z $genNumber ]] && genNumber=0
261
262  if [[ $hsmNodesetId = DELETE ]]
263  then
264    removeHSMdata=yes
265  else
266    [[ ! -f $inputFile ]] && cleanupAndExit
267    [[ -f $versionFile ]] && replaceVersionInfo=yes
268  fi
269
270  #######################################################################
271  # Ensure that the local copy of the mmsdrfs is up-to-date.
272  #######################################################################
273  gpfsInitOutput=$(gpfsInit $lockId)
274  setGlobalVar $? $gpfsInitOutput
275
276  ########################################################################
277  # Go through the current mmsdrfs file.  Increment the generation
278  # number and build the node name list that will be needed later.
279  # Remove all HSMDATA lines that are currently in the file so that
280  # they can be replaced with their new version.
281  ########################################################################
282  $rm -f $newsdrfs $nodefile
283  IFS=":"
284  exec 3<&-
285  exec 3< $mmsdrfsFile
286  while read -u3 sdrfsLine
287  do
288    # Parse the line.
289    set -f ; set -A v -- - $sdrfsLine ; set +f
290
291    IFS="$IFS_sv"    # Restore the default IFS settings.
292    printLine=true   # Assume the line will be printed.
293
294    case ${v[$LINE_TYPE_Field]} in
295
296      $VERSION_LINE )
297        # If requested, ensure that the current version of the mmsdrfs
298        # file matches the caller's version of the data.
299        [[ $genNumber -gt 0 && $genNumber -ne ${v[$SDRFS_GENNUM_Field]} ]] &&  \
300          return 52  # ESTALE
301
302        # Increment the generation number
303        newGenNumber=${v[$SDRFS_GENNUM_Field]}+1
304        v[$SDRFS_GENNUM_Field]=$newGenNumber
305        ;;
306
307      $MEMBER_NODE )
308        # Collect the reliable names of all nodes in the cluster.
309        print -- "${v[$REL_HOSTNAME_Field]}" >> $nodefile
310        checkForErrors "writing to file $nodefile" $?
311        ;;
312
313      $HSMDATA )
314        # This is a line with HSM data.
315        # Remove the line if it is for the right nodeset.
316        [[ ${v[$HSM_NODESET_Field]} = $hsmNodesetId || -n $removeHSMdata ]] && \
317          printLine=false
318        ;;
319
320      $HSMVERSION )
321        # This is a HSMVERSION line.
322        # Remove the line from the mmsdrfs file if the
323        # version information will be updated as well.
324        [[ -n $replaceVersionInfo || -n $removeHSMdata ]] &&  \
325          printLine=false
326        ;;
327
328      * )  # Not interested in any other lines.
329        ;;
330
331    esac  # end of case ${v[$LINE_TYPE_Field]} in
332
333    # Build and write the line to the new mmsdrfs file.
334    if [[ $printLine = true ]]
335    then
336      print_newLine >> $newsdrfs
337      checkForErrors "writing to file $newsdrfs" $?
338    fi
339
340    IFS=":"  # Change the separator back to ":" for the next iteration.
341
342  done  # end while read -u3
343
344  IFS="$IFS_sv"  # Restore the default IFS settings.
345
346  #########################################################
347  # Append the user-provided input file to the sdrfs file.
348  #########################################################
349  if [[ -z $removeHSMdata ]]
350  then
351    exec 3<&-
352    exec 3< $inputFile
353    IFS=""     # Reset IFS to preserve blanks and tabs.
354    while read -u3 inLine
355    do
356      lineNumber=$lineNumber+1
357      print -- "$DSM_DATA:$HSMDATA:$hsmNodesetId:$lineNumber:$inLine" >> $newsdrfs
358    done
359    checkForErrors "writing to file $newsdrfs" $?
360    IFS="$IFS_sv"
361  fi  # end of if [[ -z $removeHSMdata ]]
362
363  #########################################################
364  # If the version information needs to be updated as well,
365  # append the user-provided input file to the sdrfs file.
366  #########################################################
367  if [[ -n $replaceVersionInfo && -z $removeHSMdata ]]
368  then
369    exec 3<&-
370    exec 3< $versionFile
371    IFS=""     # Reset IFS to preserve blanks and tabs.
372    lineNumber=0
373    while read -u3 inLine
374    do
375      lineNumber=$lineNumber+1
376      print -- "$DSM_DATA:$HSMVERSION::$lineNumber:$inLine" >> $newsdrfs
377    done
378    checkForErrors "writing to file $newsdrfs" $?
379    IFS="$IFS_sv"
380  fi  # end of if [[ -n $replaceVersionInfo && -z $removeHSMdata ]]
381
382  # Sort the new version of the mmsdrfs file.
383  LC_ALL=C $SORT_MMSDRFS $newsdrfs -o $newsdrfs
384  checkForErrors "sorting $newsdrfs" $?
385
386  ####################################################################
387  # Put the new mmsdrfs file into the sdr.  This commits the changes.
388  ####################################################################
389  trap "" HUP INT QUIT KILL
390  gpfsObjectInfo=$(commitChanges  \
391     $nsId $nsId $gpfsObjectInfo $newGenNumber $newsdrfs $primaryServer)
392  rc=$?
393  if [[ $rc -ne 0 ]]
394  then
395    # The commit step failed.
396    printErrorMsg 381 $mmcmd
397    cleanupAndExit
398  fi
399
400  ##################
401  # Unlock the sdr.
402  ##################
403  [[ $sdrLocked = yes ]] &&  \
404    freeLockOnServer $primaryServer $ourNodeNumber > /dev/null
405  sdrLocked=no
406  trap localPosttrap HUP INT QUIT KILL
407
408  ###############################################
409  # Propagate the changes to all affected nodes.
410  ###############################################
411  propagateSdrfsFile async $nodefile $newsdrfs $newGenNumber
412
413  return 0
414
415}  #------------ end function dsmPutHsmdata -----------------
416
417
418##########################################################################
419#
420# Function:  Retrieve the HSM data from the mmsdrfs file.
421#
422# Input:     $1 - nodeset to which the data pertains
423#            $2 - name of a file where to store the HSM data
424#            $3 - (optional) assume cached data is current
425#
426# Returns:   0 - no errors encountered
427#            1 - unexpected error
428#            3 - HSM data not found in the repository
429#
430##########################################################################
431function dsmGetHsmdata  # <nodesetId> <outputFile> [norefresh]
432{
433  typeset sourceFile="mmdsm.sh"
434  [[ -n $DEBUG || -n $DEBUGdsmGetHsmdata ]] && set -x
435  typeset hsmNodesetId=$1
436  typeset outputFile=$2
437  typeset -l refreshArg=$3
438
439  typeset gpfsInitOutput sdrfsLine nodesetIdField hsmNodesetField
440  typeset lineTypeField outLine
441
442  #######################################################################
443  # Ensure that the local copy of the mmsdrfs is up-to-date.
444  #######################################################################
445  if [[ $refreshArg != "norefresh" ]]
446  then
447    gpfsInitOutput=$(gpfsInit nolock)
448    setGlobalVar $? $gpfsInitOutput
449  fi
450
451  ##############################################################################
452  # Go through the current mmsdrfs file and retrieve the requested information.
453  ##############################################################################
454  $rm -f $outputFile
455  IFS=":"
456  exec 3<&-
457  exec 3< $mmsdrfsFile
458  while read -u3 sdrfsLine
459  do
460    # Parse the line.
461    set -f ; set -- $sdrfsLine ; set +f
462    nodesetIdField=$1
463    lineTypeField=$2
464    hsmNodesetField=$3
465
466    # We are interested only in the HSMDATA lines for
467    # the specified HSM nodeset id.
468    if [[ $nodesetIdField = $DSM_DATA &&
469          $lineTypeField  = $HSMDATA  &&
470          $hsmNodesetField = $hsmNodesetId ]]
471    then
472      # The HSM information is everything past the first 4 fields.
473      shift 4
474      outLine=$*
475
476      # To preserve tabs, temporarily set IFS to new line only.
477      IFS="
478"
479      # Strip trailing colons and add the line to the output file.
480      print -- "${outLine%%+(:)}" >> $outputFile
481      checkForErrors "writing to file $outputFile" $?
482      IFS=":" # Change the separator back to ":" for the next iteration
483    fi
484
485  done  # end while read -u3 sdrfsLine
486
487  IFS="$IFS_sv"  # Restore the default IFS settings.
488
489  if [[ -s $outputFile ]]
490  then
491    return 0  # HSM data successfully retrieved.
492  else
493    return 3  # HSM data does not exist.
494  fi
495
496}  #------------ end function dsmGetHsmdata -----------------
497
498
499##########################################################################
500#
501# Function:  Append the version information for the HSM data.
502#
503# Input:     $1 - path name of file to store in the sdr
504#            $2 - mmsdrfs file version (generation) number (optional)
505#
506# Returns:   0 - no errors encountered
507#            non-zero - unexpected error
508#
509##########################################################################
510function dsmPutHsmversion  # <inputFile> [<genNumber>]
511{
512  typeset sourceFile="mmdsm.sh"
513  [[ -n $DEBUG || -n $DEBUGdsmPutHsmversion ]] && set -x
514  typeset inputFile=$1
515  typeset genNumber=$2
516
517  typeset gpfsInitOutput sdrfsLine printLine inLine rc
518  typeset -i lineNumber=0
519
520  [[ ! -f $inputFile ]] && cleanupAndExit
521  [[ -z $genNumber ]] && genNumber=0
522
523  #################################################################
524  # Ensure that the local copy of the mmsdrfs is up-to-date.
525  #################################################################
526  gpfsInitOutput=$(gpfsInit $lockId)
527  setGlobalVar $? $gpfsInitOutput
528
529  #################################################################
530  # Go through the current mmsdrfs file.  Increment the generation
531  # number and build the node name list that will be needed later.
532  # Remove all HSMVERSION lines that are currently in the file
533  # so that they can be replaced with their new version.
534  #################################################################
535  $rm -f $newsdrfs $nodefile
536  IFS=":"
537  exec 3<&-
538  exec 3< $mmsdrfsFile
539  while read -u3 sdrfsLine
540  do
541    # Parse the line.
542    set -f ; set -A v -- - $sdrfsLine ; set +f
543
544    IFS="$IFS_sv"    # Restore the default IFS settings.
545    printLine=true   # Assume the line will be printed.
546
547    case ${v[$LINE_TYPE_Field]} in
548
549      $VERSION_LINE )
550        # If requested, ensure that the current version of the mmsdrfs
551        # file matches the caller's version of the data.
552        [[ $genNumber -gt 0 && $genNumber -ne ${v[$SDRFS_GENNUM_Field]} ]] &&  \
553          return 52  # ESTALE
554
555        # Increment the generation number
556        newGenNumber=${v[$SDRFS_GENNUM_Field]}+1
557        v[$SDRFS_GENNUM_Field]=$newGenNumber
558        ;;
559
560      $MEMBER_NODE )
561        # Collect the reliable names of all nodes in the cluster.
562        print -- "${v[$REL_HOSTNAME_Field]}" >> $nodefile
563        checkForErrors "writing to file $nodefile" $?
564        ;;
565
566      $HSMVERSION )
567        # This is a HSMVERSION line.
568        # Remove the line from the mmsdrfs file.
569        printLine=false
570        ;;
571
572      * )  # Not interested in any other lines.
573        ;;
574
575    esac  # end of case ${v[$LINE_TYPE_Field]} in
576
577    # Build and write the line to the new mmsdrfs file.
578    if [[ $printLine = true ]]
579    then
580      print_newLine >> $newsdrfs
581      checkForErrors "writing to file $newsdrfs" $?
582    fi
583
584    IFS=":"  # Change the separator back to ":" for the next iteration.
585
586  done  # end while read -u3
587
588  IFS="$IFS_sv"  # Restore the default IFS settings.
589
590  #########################################################
591  # Append the user-provided input file to the sdrfs file.
592  #########################################################
593  exec 3<&-
594  exec 3< $inputFile
595  IFS=""     # Reset IFS to preserve blanks and tabs.
596  while read -u3 inLine
597  do
598    lineNumber=$lineNumber+1
599    print -- "$DSM_DATA:$HSMVERSION::$lineNumber:$inLine" >> $newsdrfs
600  done
601  checkForErrors "writing to file $newsdrfs" $?
602  IFS="$IFS_sv"
603
604  # Sort the new version of the mmsdrfs file.
605  LC_ALL=C $SORT_MMSDRFS $newsdrfs -o $newsdrfs
606  checkForErrors "sorting $newsdrfs" $?
607
608  ####################################################################
609  # Put the new mmsdrfs file into the sdr.  This commits the changes.
610  ####################################################################
611  trap "" HUP INT QUIT KILL
612  gpfsObjectInfo=$(commitChanges  \
613     $nsId $nsId $gpfsObjectInfo $newGenNumber $newsdrfs $primaryServer)
614  rc=$?
615  if [[ $rc -ne 0 ]]
616  then
617    # The commit step failed.
618    printErrorMsg 381 $mmcmd
619    cleanupAndExit
620  fi
621
622  ##################
623  # Unlock the sdr.
624  ##################
625  [[ $sdrLocked = yes ]] &&  \
626    freeLockOnServer $primaryServer $ourNodeNumber > /dev/null
627  sdrLocked=no
628  trap localPosttrap HUP INT QUIT KILL
629
630  ###############################################
631  # Propagate the changes to all affected nodes.
632  ###############################################
633  propagateSdrfsFile async $nodefile $newsdrfs $newGenNumber
634
635  return 0
636
637}  #------------ end function dsmPutHsmversion -----------------
638
639
640##########################################################################
641#
642# Function:  Retrieve the version information for the HSM data.
643#
644# Input:     $1 - name of a file where to store the data
645#            $2 - (optional) assume cached data is current
646#
647# Output:    current version (generation) number of the mmsdrfs file.
648#
649# Returns:   0 - no errors encountered
650#            1 - unexpected error
651#            3 - data not found in the repository
652#
653##########################################################################
654function dsmGetHsmversion  # <outputFile> [norefresh]
655{
656  typeset sourceFile="mmdsm.sh"
657  [[ -n $DEBUG || -n $DEBUGdsmGetHsmversion ]] && set -x
658  typeset outputFile=$1
659  typeset -l refreshArg=$2
660
661  typeset gpfsInitOutput sdrfsLine nodesetIdField lineTypeField outLine
662  typeset genNumber
663
664  ###########################################################
665  # Ensure that the local copy of the mmsdrfs is up-to-date.
666  ###########################################################
667  if [[ $refreshArg != "norefresh" ]]
668  then
669    gpfsInitOutput=$(gpfsInit nolock)
670    setGlobalVar $? $gpfsInitOutput
671  fi
672
673  ##############################################################################
674  # Go through the current mmsdrfs file and retrieve the requested information.
675  ##############################################################################
676  $rm -f $outputFile
677  IFS=":"
678  exec 3<&-
679  exec 3< $mmsdrfsFile
680  while read -u3 sdrfsLine
681  do
682    # Parse the line.
683    set -f ; set -- $sdrfsLine ; set +f
684    nodesetIdField=$1
685    lineTypeField=$2
686
687    # Get the current mmsdrfs gen number.
688    [[ $lineTypeField = $VERSION_LINE ]] && genNumber=$6
689
690    # We are interested only in the HSMVERSION lines.
691    if [[ $nodesetIdField = $DSM_DATA && $lineTypeField = $HSMVERSION ]]
692    then
693      # The HSM version information is everything past the first 4 fields.
694      shift 4
695      outLine=$*
696
697      # To preserve tabs, temporarily set IFS to new line only.
698      IFS="
699"
700      # Strip trailing colons and add the line to the output file.
701      print -- "${outLine%%+(:)}" >> $outputFile
702      checkForErrors "writing to file $outputFile" $?
703      IFS=":" # Change the separator back to ":" for the next iteration.
704    fi
705
706  done  # end while read -u3 sdrfsLine
707
708  IFS="$IFS_sv"  # Restore the default IFS settings.
709
710  print -- "$genNumber"
711  if [[ -s $outputFile ]]
712  then
713    return 0  # HSM version information successfully retrieved.
714  else
715    return 3  # HSM version information does not exist.
716  fi
717
718}  #------------ end function dsmGetHsmversion -----------------
719
720
721###################################################################
722#
723# Function:  Check whether both the primary and backup config
724#            servers are available.
725#
726# Input:     $1 - (optional) assume cached data is current
727#
728# Output:    getConfigServerState:<up | down>
729#
730# Returns:   0 - both config servers are available.
731#            1 - at least one of the servers does not respond,
732#                or some other unexpected error.
733#
734###################################################################
735function getConfigServerState
736{
737  typeset sourceFile="mmdsm.sh"
738  [[ -n $DEBUG || -n $DEBUGgetConfigServerState ]] && set -x
739  $mmTRACE_ENTER "$*"
740  typeset -l refreshArg=$1
741
742  typeset versionLine=""
743  typeset serverState="up"
744  typeset rc=0
745  typeset primaryServer backupServer
746
747  # Ensure that the local copy of the mmsdrfs is up-to-date.
748  if [[ $refreshArg != "norefresh" ]]
749  then
750    gpfsInitOutput=$(gpfsInit nolock)
751    setGlobalVar $? $gpfsInitOutput
752  fi
753
754  # Parse the version line of the mmsdrfs file.
755  versionLine=$($head -1 $mmsdrfsFile)
756  IFS=':'
757  set -f ; set -A v -- - $versionLine ; set +f
758  IFS="$IFS_sv"
759
760  # Perform a quick sanity check.
761  [[ ${v[$LINE_TYPE_Field]} != $VERSION_LINE ]] &&  \
762    corruptedSdrFileExit 143 "$versionLine"
763
764  # Get the config server names.
765  primaryServer=${v[$PRIMARY_SERVER_Field]}
766  backupServer=${v[$BACKUP_SERVER_Field]}
767  [[ $backupServer = "_NOSECONDARY_" ]] && backupServer=""
768
769  # Verify the primary server is reachable.
770  isNodeReachable $primaryServer
771  rc=$?
772  [[ $rc -ne 0 ]] && serverState=down
773
774  # Verify the backup server is reachable.
775  if [[ $rc -eq 0 && -n $backupServer ]]
776  then
777    isNodeReachable $backupServer
778    rc=$?
779    [[ $rc -ne 0 ]] && serverState=down
780  fi
781
782  # Generate and display the result.
783  print -- "getConfigServerState:$serverState"
784
785  return $rc
786
787}  #------ end of function getConfigServerState -------------------
788
789
790###################################################################
791#
792# Function:  Create a list of all local and remote file systems.
793#
794# Input:     $1 - name of a file where to store the result
795#            $2 - (optional) assume cached data is current
796#
797# Output:    A file with all file system device names, one per line.
798#            The names of all local file systems found in the cluster
799#            are preceded by "0:",  while the names of the remote file
800#            systems are preceded by "93:" (MM_Remotefs).
801#
802# Returns:    0 - success
803#            19 - no file systems found
804#            nn - some other unexpected error
805#
806###################################################################
807function dsmGetFileSystems # <outputFile> [<norefresh>]
808{
809  typeset sourceFile="mmdsm.sh"
810  [[ -n $DEBUG || -n $DEBUGdsmGetFileSystems ]] && set -x
811  $mmTRACE_ENTER "$*"
812  typeset outputFile=$1
813  typeset -l refreshArg=$2
814
815  typeset rc=0
816
817
818  # Ensure that the local copy of the mmsdrfs is up-to-date.
819  if [[ $refreshArg != "norefresh" ]]
820  then
821    gpfsInitOutput=$(gpfsInit nolock)
822    setGlobalVar $? $gpfsInitOutput
823  fi
824
825  # Generate the requested information.
826  $rm -f $outputFile
827  $awk -F: '                                                       \
828    BEGIN { rc = '$MM_DeviceNotFound' }                            \
829    $'$LINE_TYPE_Field' == "'$SG_HEADR'"  {                        \
830      if ($'$FS_TYPE_Field' == "'$remotefs'") {                    \
831        { print "93:/dev/"$'$DEV_NAME_Field' >> "'$outputFile'" }  \
832      }                                                            \
833      else {                                                       \
834        { print "0:/dev/"$'$DEV_NAME_Field' >> "'$outputFile'" }   \
835      }                                                            \
836      { rc = 0 }                                                   \
837    }                                                              \
838    END { exit rc }                                                \
839  ' $mmsdrfsFile
840  rc=$?
841
842  return $rc
843
844}  #------ end of function dsmGetFileSystems -------------------
845
846
847###################################################################
848#
849# Function:  Check whether a given file system is local or remote.
850#
851# Input:     $1 - file system device name
852#            $2 - (optional) assume cached data is current
853#
854# Output:     0 - file system is local
855#            93 - file system is remote
856#
857# Returns:    0 - file system is local
858#            93 - file system is remote
859#            19 - file system not found
860#            nn - some other unexpected error
861#
862###################################################################
863function dsmIsFileSystemLocal   # <deviceName> [<norefresh>]
864{
865  typeset sourceFile="mmdsm.sh"
866  [[ -n $DEBUG || -n $DEBUGdsmIsFileSystemLocal ]] && set -x
867  $mmTRACE_ENTER "$*"
868  typeset device=$1
869  typeset -l refreshArg=$2
870
871  typeset rc=0
872  typeset gpfsInitOutput findFSoutput fqDeviceName deviceName fsHomeCluster
873
874  # Ensure that the local copy of the mmsdrfs is up-to-date.
875  if [[ $refreshArg != "norefresh" ]]
876  then
877    gpfsInitOutput=$(gpfsInit nolock)
878    setGlobalVar $? $gpfsInitOutput
879  fi
880
881  # Make sure the specified file system exists and is local.
882  findFSoutput=$(findFS "$device" $mmsdrfsFile)
883  rc=$?
884  [[ $rc -ne 0 || -z $findFSoutput ]] && return $rc
885
886  # Parse the output from the findFS function.
887  set -f ; set -- $findFSoutput ; set +f
888  fqDeviceName=$1
889  deviceName=$2
890  fsHomeCluster=$3
891
892  # Figure out the proper return information.
893  if [[ $fsHomeCluster = $HOME_CLUSTER ]]
894  then
895    print -- "0"
896    rc=0
897  else
898    print -- "$MM_Remotefs"
899    rc=$MM_Remotefs
900  fi
901
902  return $rc
903
904}  #------ end of function dsmIsFileSystemLocal -------------------
905
906
907########################
908#  Mainline processing
909########################
910
911# Set local trap routine.
912trap localPretrap HUP INT QUIT KILL
913
914[[ $dsmLog != "/dev/null" ]] &&  \
915  print -- "$(date) ENTER: mmdsm $*"  >> $dsmLog
916
917kword=$arg1
918if [[ -z $kword ]]
919then
920  # Missing keyword
921  printErrorMsg 133 $mmcmd NULL
922  cleanupAndExit
923fi
924
925# Determine the execution environment.
926[[ -z $MMMODE ]] && determineMode 2>> $dsmLog
927
928# Make sure we have the proper credentials.
929[[ $getCredCalled = no ]] && getCred 2>> $dsmLog
930
931
932# Perform the requested action.
933case $kword in
934
935                     #-------------------------
936  dsmGetClusterType) # mmdsm dsmGetClusterType
937                     #-------------------------
938    # Retrieve the GPFS cluster type.
939    print -- "$MMMODE"
940    rc=$?
941    ;;
942
943                    #------------------------
944  dsmGetNodeNumber) # mmdsm dsmGetNodeNumber
945                    #------------------------
946    # Retrieve the local node data.
947    getLocalNodeData 2>> $dsmLog
948    [[ -n $ourNodeNumber ]] && print -- "$ourNodeNumber"
949    rc=$?
950    ;;
951
952                    #------------------------
953  dsmGetNodesetId)  # mmdsm dsmGetNodesetId
954                    #------------------------
955    # Retrieve the nodeset name.
956    dsmGetNodesetId 2>> $dsmLog
957    rc=$?
958    ;;
959
960                    #------------------------
961  dsmGetNodeCount)  # mmdsm dsmGetNodeCount
962                    #------------------------
963    # Retrieve the number of nodes in the nodeset.
964    dsmGetNodeCount 2>> $dsmLog
965    rc=$?
966    ;;
967
968                  #----------------------------------------------------------
969  dsmGetHsmdata)  # mmdsm dsmGetHsmdata <nodesetId> <outputFile> [norefresh]
970                  #----------------------------------------------------------
971    if [[ $argc -lt 3 ]]
972    then
973      operands=" <nodesetId> <outputFile> [norefresh] "
974      printErrorMsg 260 $mmcmd $kword "$operands"
975      cleanupAndExit
976    fi
977
978    # Retrieve the HSM data.
979    dsmGetHsmdata "$arg2" "$arg3" "$arg4"  2>> $dsmLog
980    rc=$?
981    ;;
982
983                  #-------------------------------------------------------------
984  dsmPutHsmdata)  # mmdsm dsmPutHsmdata <nodesetId> <inputFile>
985                  #                     [<versionFile> [<mmsdrfsVersion>]]
986                  #-------------------------------------------------------------
987    if [[ $argc -lt 2 ]]
988    then
989      operands=" {<nodesetId> | DELETE} <inputFile> [<versionFile> [<mmsdrfsVersion>]] "
990      printErrorMsg 260 $mmcmd $kword "$operands"
991      cleanupAndExit
992    fi
993
994    # Store the HSM data in the mmsdrfs file.
995    dsmPutHsmdata "$arg2" "$arg3" "$arg4" "$arg5"  2>> $dsmLog
996    rc=$?
997    ;;
998
999                     #-------------------------------------------------
1000  dsmGetHsmversion)  # mmdsm dsmGetHsmversion <outputFile> [norefresh]
1001                     #-------------------------------------------------
1002    if [[ $argc -lt 2 ]]
1003    then
1004      operands=" <outputFile> [norefresh] "
1005      printErrorMsg 260 $mmcmd $kword "$operands"
1006      cleanupAndExit
1007    fi
1008
1009    # Retrieve the version information for the HSM data.
1010    dsmGetHsmversion "$arg2" "$arg3"  2>> $dsmLog
1011    rc=$?
1012    ;;
1013
1014                     #-------------------------------------------------------
1015  dsmPutHsmversion)  # mmdsm dsmPutHsmversion <inputFile> [<mmsdrfsVersion>]
1016                     #-------------------------------------------------------
1017    if [[ $argc -lt 2 ]]
1018    then
1019      operands=" <inputFile> [<mmsdrfsVersion>] "
1020      printErrorMsg 260 $mmcmd $kword "$operands"
1021      cleanupAndExit
1022    fi
1023
1024    # Store the version information for the HSM data.
1025    dsmPutHsmversion "$arg2" "$arg3"  2>> $dsmLog
1026    rc=$?
1027    ;;
1028
1029                            #-------------------------------------------
1030  dsmGetConfigServerState)  # mmdsm dsmGetConfigServerState [norefresh]
1031                            #-------------------------------------------
1032    # Confirm that both config servers are available.
1033    getConfigServerState "$arg2"  2>> $dsmLog
1034    rc=$?
1035    ;;
1036
1037                      #--------------------------------------------------
1038  dsmGetFileSystems)  # mmdsm dsmGetFileSystems <outputFile> [norefresh]
1039                      #--------------------------------------------------
1040    if [[ $argc -lt 2 ]]
1041    then
1042      operands=" <outputFile> [norefresh] "
1043      printErrorMsg 260 $mmcmd $kword "$operands"
1044      cleanupAndExit
1045    fi
1046
1047    # Retrieve the file system information.
1048    dsmGetFileSystems "$arg2" "$arg3" 2>> $dsmLog
1049    rc=$?
1050    ;;
1051
1052                         #-----------------------------------------------------
1053  dsmIsFileSystemLocal)  # mmdsm dsmIsFileSystemLocal <deviceName> [norefresh]
1054                         #-----------------------------------------------------
1055    if [[ $argc -lt 2 ]]
1056    then
1057      operands=" <deviceName> [<norefresh>] "
1058      printErrorMsg 260 $mmcmd $kword "$operands"
1059      cleanupAndExit
1060    fi
1061
1062    # Find out if a file system is local or remote.
1063    dsmIsFileSystemLocal "$arg2" "$arg3"  2>> $dsmLog
1064    rc=$?
1065    ;;
1066
1067        #--------------------------
1068  * )   # Unknown action requested
1069        #--------------------------
1070    # Invalid keyword
1071    printErrorMsg 133 $mmcmd $kword
1072    cleanupAndExit
1073    ;;
1074
1075esac  # end Perform the requested action
1076
1077[[ $dsmLog != "/dev/null" ]] &&  \
1078  print -- "$(date) EXIT (rc=$rc)" >> $dsmLog
1079
1080cleanupAndExit $rc 2>> $dsmLog
1081
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