IV04162: UNMIRRORVG DOESN'T LINK IPLDEVICE TO THE NEW BOOT DISK APPLIES TO AIX 5300-12

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• If using mirrorvg/unmirrorvg to migrate rootvg from one
  disk to another, or using unmirrorvg to remove the disks
  to
  which  ipldevice is linked to replace a failing drive,
  ipldevice is not relinked to the remaining disk.
  If the old device is removed using rmdev -dl <hdisk>
  further commands using bootinfo like mkszfile will fail
  with :
  # /usr/bin/mkszfile
  0301-150 bosboot: Invalid or no boot device specified!
  usage:  bosboot ....
  A boot in that case would fail on led 554.
  

Local fix

• relink ipldevice to the new boot disk after unmirrorvg.
  using :
  ln /dev/r<hdiskXX> /dev/ipldevice
  for example :
  ln /dev/rhdisk1 /dev/ipldevice
  

Problem summary

• If unmirrorvg removes the bootlv from the previously booted
  hdisk (which /dev/ipldevice is linked to), then
  bosboot -ad /dev/ipldevice can write the boot image to the
  wrong disk, or fail if that disk has been removed.
  This can lead to issues during a reboot if not corrected.
  

Problem conclusion

• Add code to unmirrorvg to detect this situation and remake
  /dev/ipldevice to point to a valid boot disk still in the
  boot lv.
  

Temporary fix

Comments

APAR Information

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

  IV00794

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

Fix information

• Fixed component name

  AIX 5.3

• Fixed component ID

  5765G0300

Applicable component levels

• R530 PSY U844628

     UP11/10/10 I 1000

PTF to Fileset Mapping

• U844628 bos.rte.lvm 5.3.12.4