systemd (LVM) stops in emergency mode during scan

Solution In Progress - Updated -

Issue

  • Reboot intermittently failed to activate logical volumes which cause server to enter maintenance mode.

  • Reboots fail with the following error:

● lvm2-pvscan@9:5.service - LVM2 PV scan on device 9:5
   Loaded: loaded (/usr/lib/systemd/system/lvm2-pvscan@.service; static; vendor preset: disabled)
   Active: failed (Result: exit-code) since Fri 1994-10-31 10:10:10 EDT; 8min ago
     Docs: man:pvscan(8)
  Process: 3862 ExecStart=/usr/sbin/lvm pvscan --cache --activate ay %i (code=exited, status=5)
 Main PID: 3862 (code=exited, status=5)

Environment

  • Red Hat Enterprise Linux 7.4
  • A large number of NVME devices, i.e. 20+

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