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OSM shows space reservation status as 'Thin Provisioned' for thick LUNs with fractional reserve disabled

  1. Last updated
    Apr 25, 2025
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Category:
ontap-system-manager
Specialty:
om
Last Updated:
4/25/2025, 12:23:17 PM

Applies to

  • ONTAP System Manager (OSM)
  • ONTAP 9.10+

Issue

  • OSM GUI shows space reservation status as 'Thin Provisioned' although space-reserve is enabled for a LUN
  • GUI also shows an error as: "Thick provisioning was already requested, but the request cannot be fulfilled."
OSM GUI shows space reservation status
  • Volume details shows 'fractional-reserve' is 0% where as by default it should be 100% for a volume with space-guarantee volume

vol show -vserver <vserver_name> -volume <vol_name> -fields fractional-reserve, space-guarantee

Thin Provisioned' for thick LUNs with fractional reserve disabled

 

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