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LSVG -P does not issue any warning or errors when multiple PVs have duplicate PVIDs. It may list PVs that are not part of the volume group.
Every day, we clone all of the PVs in select volume groups, then run cfgmgr to make them accessible. Our normal first step is to clear and reset the PVID of each of the new PVs. Then use those PVs to recreate a new cloned version of the original volume group. However, stuff happens and on rare occasions our script fails before the PVIDs get reset. When there are multiple PVs with duplicate PVIDs, the LSVG -P <vg> command may not list the PVs that actual belong to volume group. There are no warning or error messages to warn us that a invalid situation exists. This has caused us to lose data when we restart/rerun the script to recreate the clones.
We expect AIX to be an enterprise grade system far above the run of the mill consumer grade operating systems. Because stuff happens, we expect AIX to detect and alert us [and if possible correct] error situations. Therefore, we expect LSVG -P to at least warn us with a non-zero return code and message that duplicate PVIDs exist. Then we would know to take corrective action.
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