Why do I see high storage consumption SAN side after formatting a newly presented thin provisioned LUN to a Red Hat Enterprise Linux machine?

Solution Verified - Updated -

Issue

  • Why do I see very high storage-side consumption after formatting a newly presented thin provisioned LUN to a Red Hat Enterprise Linux machine while only seeing 1% consumption on the machine itself when issuing the df command?

Environment

  • Red Hat Enterprise Linux
  • Thin provisioned LUNs

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