Why is a scsi device name not created for all paths of LUN?

Solution Verified - Updated -

Issue

  • Why scsi device name not created for all paths of LUN?
  • Multipath doesn't show all paths for devices
  • sg device created for scsi device but no /dev/sd? device file created

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • LUNs reporting a Peripheral Qualifier (PQ) set to 1

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