SBD device list showing blank output

Issue

• Getting error message "sbd failed; please check the logs" after creating / adding new sbd device into cluster.
  - Failed to start sbd.service: Operation refused.
  - sbd -d '' list showing output as a blank shell.

• Check if you are getting errors while sending/testing messages by sbd devices

# sbd -d /dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_drive-scsi0-0-0-1 message node1 test
sbd failed; please check the logs.

---- var/log/messages logs -----
Mar  2 06:58:06 rhel7-4-node1 sbd[11105]: /dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_drive-scsi0-0-0-1:    error: slot_msg: slot_msg(): No recipient / cmd specified.
Mar  2 06:58:06 rhel7-4-node1 sbd[11104]: warning: messenger: Process 11105 failed to deliver!