topic Unable to see Lun in ESX in ONTAP Discussions https://community.netapp.com/t5/ONTAP-Discussions/Unable-to-see-Lun-in-ESX/m-p/78890#M18384 <HTML><HEAD></HEAD><BODY><P>I have created a cloned volume named clone1 which has two LUNs lun1 and lun2 in two seperate qtrees presented to ESX host through FC. After mapping from filer, I can able to access first lun in ESX without any issue, but second lun lun2 is asking for format.</P><P></P><P>How to overcome this issue without creating another cloned volume? Need help from experts..</P><P></P><P>Ram</P></BODY></HTML> Thu, 05 Jun 2025 05:30:24 GMT RAMACHANDRA_CL 2025-06-05T05:30:24Z Unable to see Lun in ESX https://community.netapp.com/t5/ONTAP-Discussions/Unable-to-see-Lun-in-ESX/m-p/78890#M18384 <HTML><HEAD></HEAD><BODY><P>I have created a cloned volume named clone1 which has two LUNs lun1 and lun2 in two seperate qtrees presented to ESX host through FC. After mapping from filer, I can able to access first lun in ESX without any issue, but second lun lun2 is asking for format.</P><P></P><P>How to overcome this issue without creating another cloned volume? Need help from experts..</P><P></P><P>Ram</P></BODY></HTML> Thu, 05 Jun 2025 05:30:24 GMT https://community.netapp.com/t5/ONTAP-Discussions/Unable-to-see-Lun-in-ESX/m-p/78890#M18384 RAMACHANDRA_CL 2025-06-05T05:30:24Z Re: Unable to see Lun in ESX https://community.netapp.com/t5/ONTAP-Discussions/Unable-to-see-Lun-in-ESX/m-p/78894#M18386 <HTML><HEAD></HEAD><BODY><P>maybe it has something to do with the VMFS signature. as it is a clone, it has the same VMFS signature as the original volume. so ESX does not automatically mount it due to security reasons. under mounting options you should select "Assign a New Signature".</P><P><A href="http://kb.vmware.com/kb/1011387" title="http://kb.vmware.com/kb/1011387" target="_blank">http://kb.vmware.com/kb/1011387</A></P></BODY></HTML> Mon, 18 Aug 2014 13:36:10 GMT https://community.netapp.com/t5/ONTAP-Discussions/Unable-to-see-Lun-in-ESX/m-p/78894#M18386 DOMINIC_WYSS 2014-08-18T13:36:10Z