Multipath device is rejected and subsequently not created; size discard and domap failed to add paths

Solution Verified - Updated -

Issue

  • Multipath does not create a multipath device when the native mpio and SAN configuration is such that a device should be created.

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Device-mapper-multipath

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