Cannot activate LVs in VG <vg_name> while PVs appear on duplicate devices

Solution Verified - Updated -

Issue

  • Cannot activate the volume group.
[root@testbox lvm]# vgchange -ay testvg
  WARNING: Not using device /dev/sde1 for PV pv_uuid.
  WARNING: Not using device /dev/sdf1 for PV pv_uuid.
  WARNING: Not using device /dev/sdg1 for PV pv_uuid.
  Cannot activate LVs in VG testvg while PVs appear on duplicate devices.  <<<<
  0 logical volume(s) in volume group "testvg" now active  <<<<
  • Why do I get duplicate PV warnings when I run LVM commands?

Environment

  • Red Hat Enterprise Linux 8
  • LVM2
  • Multiple paths to storage device(s)

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