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pvscan Shows 'There are # physical volumes missing', but these PVs really exist. (Doc ID 2412066.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version Oracle Linux 6.9 with Unbreakable Enterprise Kernel [4.1.12] and later
Linux x86-64

Symptoms

The output of pvscan command shows 'There are # physical volumes missing', but these physical volumes indeed exist and work well.

# pvscan -v -d
  WARNING: lvmetad is running but disabled. Restart lvmetad before enabling it!
  Using physical volume(s) on command line.
  Wiping cache of LVM-capable devices
  Wiping internal VG cache
  There are 3 physical volumes missing.  <<----
  WARNING: Device mismatch detected for VGExaDb/LVDbSys1 which is accessing /dev/xvda2, /dev/xvde1 instead of (null).
  WARNING: Device mismatch detected for VGExaDb/LVDbSys2 which is accessing /dev/xvdd1, /dev/xvde1 instead of (null).
  WARNING: Device mismatch detected for VGExaDb/LVDbOra1 which is accessing /dev/xvdd1 instead of (null).
  WARNING: Device mismatch detected for VGExaDb/LVDbSwap1 which is accessing /dev/xvdd1 instead of (null).
  WARNING: Device mismatch detected for VGExaDb/LVDoNotRemoveOrUse which is accessing /dev/xvdd1 instead of (null).
  WARNING: Device mismatch detected for VGExaDb/LVDbVdR2D201VM04DBFSC4 which is accessing /dev/xvda2 instead of (null).
  There are 3 physical volumes missing.  <<----
  PV /dev/xvda2 VG VGExaDb lvm2 [24.50 GiB / 0 free] <<---- exists
  PV /dev/xvdd1 VG VGExaDb lvm2 [62.00 GiB / 0 free] <<---- exists
  PV /dev/xvde1 VG VGExaDb lvm2 [96.00 GiB / 23.36 GiB free] <<---- exists
  PV /dev/xvdf VG VGExaDb lvm2 [150.00 GiB / 20.00 GiB free]
  Total: 4 [332.48 GiB] / in use: 4 [332.48 GiB] / in no VG: 0 [0 ]

# ls /dev/xvd*

... /dev/xvda2 ... /dev/xvdd1 ... /dev/xvde1 /dev/xvdf ...

Cause

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