https://community.netapp.com/t5/ONTAP-Discussions/Volume-LUN/m-p/429622#M39567 <P>Considering default 20% snap reserve, so 1.2TB for vol is fine. That way you intend to give full 1TB(THIN) to the Lun.</P><P>&nbsp;</P><P>LUN is a file inside the volume. Total Volume size= data space (LUN) + Snapshot reserve.</P><P>&nbsp;</P><P>You can also configure volumes to automatically provide more space when they are full<BR /><A href="https://docs.netapp.com/us-en/ontap/volumes/configure-automatic-provide-space-when-full-task.html" target="_blank">https://docs.netapp.com/us-en/ontap/volumes/configure-automatic-provide-space-when-full-task.html</A></P> Thu, 02 Dec 2021 11:29:22 GMT Ontapforrum 2021-12-02T11:29:22Z https://community.netapp.com/t5/ONTAP-Discussions/Volume-LUN/m-p/429618#M39565 <P>I want to create 1TB LUN (thin provisioning)&nbsp; so If I create flex volume of size 1.2 TB is it fine ?</P><P>How much space gap is recommended between volume &amp; LUN ?<BR /><BR /></P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Wed, 04 Jun 2025 10:08:01 GMT https://community.netapp.com/t5/ONTAP-Discussions/Volume-LUN/m-p/429618#M39565 sairajeev 2025-06-04T10:08:01Z https://community.netapp.com/t5/ONTAP-Discussions/Volume-LUN/m-p/429622#M39567 <P>Considering default 20% snap reserve, so 1.2TB for vol is fine. That way you intend to give full 1TB(THIN) to the Lun.</P><P>&nbsp;</P><P>LUN is a file inside the volume. Total Volume size= data space (LUN) + Snapshot reserve.</P><P>&nbsp;</P><P>You can also configure volumes to automatically provide more space when they are full<BR /><A href="https://docs.netapp.com/us-en/ontap/volumes/configure-automatic-provide-space-when-full-task.html" target="_blank">https://docs.netapp.com/us-en/ontap/volumes/configure-automatic-provide-space-when-full-task.html</A></P> Thu, 02 Dec 2021 11:29:22 GMT https://community.netapp.com/t5/ONTAP-Discussions/Volume-LUN/m-p/429622#M39567 Ontapforrum 2021-12-02T11:29:22Z