LVM unable to use device with message "dev_is_mpath_component /dev/sdb multipath wwid <>" or "Cannot use /dev/sdb: device is a multipath component"

Solution Verified - Updated -

Issue

  • LVM unable to use a device showing dev_is_mpath_component message:
  Opened /dev/sdb RO O_DIRECT
  /dev/sdb: size is 31244943360 sectors
  Closed /dev/sdb
  dev_is_mpath_component /dev/sdb multipath wwid 62cea7f0444ee100273d727bcc8287b6
  • LVM unable to use device:
[root@host]# vgcreate vg1 /dev/sdb 
  Cannot use /dev/sdb: device is a multipath component
  Command requires all devices to be found.

Environment

  • Red Hat Enterprise Linux 8

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