https://community.netapp.com/t5/ONTAP-Discussions/Volume-size-utilization/m-p/135742#M29834 <P>Hi,</P><P>&nbsp;</P><P>We have created a Volume of 3.6 TB with UNIX Security Style, Deduplication and Compression enabled &amp; Enable Fractional Reserve(100%) unchecked in OnCommand Systems Manager.&nbsp;</P><P>&nbsp;</P><P>There are no SnapShot or SnapMirror being configured for the volume.&nbsp;</P><P>&nbsp;</P><P>OS is Data OnTap 8.2.4P4 7-Mode.</P><P>&nbsp;</P><P>Within that we have created a LUN of 3 TB which is mapped to a Windows Server. Current space utilization for LUN is 58%.</P><P>&nbsp;</P><P>Current volume utilization is 95% with 170 Gb free.</P><P>&nbsp;</P><P>I want to understand where this 400+ GB is being used.</P><P>&nbsp;</P> Wed, 04 Jun 2025 14:24:52 GMT amit_choudhury01 2025-06-04T14:24:52Z https://community.netapp.com/t5/ONTAP-Discussions/Volume-size-utilization/m-p/135742#M29834 <P>Hi,</P><P>&nbsp;</P><P>We have created a Volume of 3.6 TB with UNIX Security Style, Deduplication and Compression enabled &amp; Enable Fractional Reserve(100%) unchecked in OnCommand Systems Manager.&nbsp;</P><P>&nbsp;</P><P>There are no SnapShot or SnapMirror being configured for the volume.&nbsp;</P><P>&nbsp;</P><P>OS is Data OnTap 8.2.4P4 7-Mode.</P><P>&nbsp;</P><P>Within that we have created a LUN of 3 TB which is mapped to a Windows Server. Current space utilization for LUN is 58%.</P><P>&nbsp;</P><P>Current volume utilization is 95% with 170 Gb free.</P><P>&nbsp;</P><P>I want to understand where this 400+ GB is being used.</P><P>&nbsp;</P> Wed, 04 Jun 2025 14:24:52 GMT https://community.netapp.com/t5/ONTAP-Discussions/Volume-size-utilization/m-p/135742#M29834 amit_choudhury01 2025-06-04T14:24:52Z