Multipath failed to map devices starting with /dev/sda*

Solution Verified - Updated -

Issue

  • Devices names starting with /dev/sda* are not listed in lultipath output (multipath -ll).
  • The multipath -ll command does not list all underlying paths that are visible at the SCSI layer.
  • Multipath device map missing for newly dtected LUNs after presenting new storage.

Environment

  • Red Hat Enterprise Linux
  • device-mapper-multipath

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