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Discrepancy in volume and LUN used space in ONTAP

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Category:
ontap-9
Specialty:
san
Last Updated:

Applies to

  • ONTAP 9
  • Thin-provisioned volume
  • Thick-provisioned LUN

Issue

A discrepancy was observed in the usage reporting of a volume and its associated LUN in the NetApp storage system. Specifically:
  • The volume "vol_lun" shows all 4TB as used (100%).
  • However, the LUN capacity only shows 1.92TB (48%) as used.

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