IV15898: BACKBYNAME PACKING ERRORS MIGHT RETURN 1 INSTEAD OF 2 APPLIES TO AIX 6100-07

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• With IZ85913 installed backbyname will return 1 if a
  packing error occurred because there is not enough space
  to copy the file in /tmp or $TMPDIR when the file we
  are trying to pack is active.
  Thus mksysb and savevg will return 0 even if the backup
  failed.
  

Local fix

• You can use backbyname -e to exclude files from packing
  or mksysb and savevg -P flag to exclude files from
  packing
  option listed in /etc/exclude_packing.<vgname>
  

Problem summary

• # cat script.savevg
  #! /usr/bin/ksh
  ulimit -f unlimited
  rm /admin/aaa.loop
  touch /admin/aaa.loop
  (sleep 80 ;dd if=/dev/zero of=/admin/aaa.loop) &
  savevg -X   -f /dev/null rootvg
  
  and we need to make sure /tmp should small enough to not store
  backup image. and big enough to savevg should not increase the
  limit which generally specified using below command.
  # LC_ALL=C bosboot -qad /dev/ipldevice | tail +3l
  | awk '{print $2 * 2}'
  105042
  
  when we run above script, it will fail with below message
  
  Should fail with :
  cp: /tmp/BACKUPXXaaaT-abaa: There is not enough space in the
  file system.
  ckup: 0511-086 Cannot copy ./admin/aaa.loop to a temporary
  location.
  backup: 0511-084 An internal packing error occurred:
   incorrect size
  backup: 0511-442 ./admin/aaa.loop will not be backed up.
  + rc=1
  
  rc should be 2 in that case.
  The sleep 13 might need to be adjusted depending on the
  system you test it as the savevg might be more or less
  faster to start the backbyname.
  

Problem conclusion

• we need to change exit value based on the error.
  
   mustfix template continued in the next note
  
      <Note by vyalamur (Yalamuri, Vijay B.), 2012/02/27
      00:48:09, seq: 8 rel: 2  action: note>
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  IV16323 IV16439 IV16729

Fix information

• Fixed component name

  AIX 610 STD EDI

• Fixed component ID

  5765G6200

Applicable component levels

• R610 PSY U839531

     UP12/05/11 I 1000

PTF to Fileset Mapping

• U839531 bos.rte.archive 6.1.7.15