Install of AIX update containing APAR IZ99728 will cause mksysb restore to fail if Native DMP is enabled on rootvg
Problem
After installation of a Technology Level (TL) or service pack with APAR IZ99728 included and Native DMP enabled on multipathed rootvg, mksysb backup images made from that updated rootvg will fail to boot due to duplicate PVIDs. After mksysb restore attempt, system will not boot until all rootvg paths but one are disabled or removed. Rootvg using MPIO for multipathing are not affected by this change in AIX LVM behavior.
Error Message
0516-1775 /usr/sbin/varyonvg: Physical volumes hdisk0 and hdisk1 have identical PVIDs (00c90a42d1196b3a).
Enter ID number:
Cause
IBM has changed the behavior of 'importvg' and 'varyonvg' as part of a released APAR. This change prevents volume group operations when there are multiple PVIDs present.
Solution
One known work-around is to disable all but one path to the rootvg to allow mksysb image of rootvg to boot.
The alternative is the work around provided by IBM for AIX6.1TL7-SP3
Applies To
SF 5.1 SP1
IBM has recently released APAR IZ99728 in the following Technology Levels (TL) and service packs:
IV00665 - bos.rte.lvm 5.3.11.5 (5300-11-08)
APAR IZ99728: IMPORTVG/VARYONVG WITH DUPLICATE PVID
IV00665 - bos.rte.lvm 5.3.12.4 (5300-12-05)
IV00667 - bos.rte.lvm 6.1.4.9 (6100-04-11)
IV00668 - bos.rte.lvm 6.1.5.5 (6100-05-07)
IV00669 - bos.rte.lvm 6.1.6.16 (6100-06-06)
IZ99728 - bos.rte.lvm 6.1.7.0 (6100-07-00)
IV00670 - bos.rte.lvm 7.1.0.16 (7100-00-04)
IZ99826 - bos.rte.lvm 7.1.1.0 (7100-01-00)