Thanks for contributing an answer to Server Fault! I am having the exact same issue with an ONTAP 9 Cluster and ESXi 6.5 using NFSv4.1 and Kerberos Authentication via our Active Directory. While it has been rewarding, I want to move into something more advanced. This topic has been locked by an administrator and is no longer open for commenting. I am using ESXi 6.5 and using the vSphere client on a windows 10 machine. (I think there is a way to mount over iSCSI, but I would like learn more about NFS). I was hoping to re-use the infrastructure we already have to build-up new projects. - Also notable, typically the fix for NFS volumes served up by Windows is a reboot of the Windows server, - Perform the following from an ssh session on the ESXi host to help determine root cause, - Consider using tcpdump-uw (included with ESXi) to dig deeper, - If all else fails consider using the OpenFiler (free). Server Fault is a question and answer site for system and network administrators. This might be the issues. Interpreting non-statistically significant results: Do we have "no evidence" or "insufficient evidence" to reject the null? Your device is currently running: Select the ESXi/ESX host. Yeah that does sound like a good use case. 2. 2530-24G Switch (J9776A). Please see the VMkernel log file for more details. Unable to connect to NAS volume nfs_data: Unable to complete Sysinfo operation. Note the IP 10.10.10.1.8.1. The DPT part of the log above indicates that the esxi nfs client is attempting to connect to the destination port 40073. The share is configured as read-only, but it's just a repository for .ISO files anyways, so I don't really want it to be writable either. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Most of the issues concerning SYS files involve Blue Screen of Death (BSOD) errors. :smileygrin: It worked!!! Thank you very much! Please see the VMkernel log file for more details. Please see the VMkernel log file for more details. The owners of this website are compensated by the relationships with the recommended software products. When I try to map an NFS share to my ESX host, I get the following error message: Call "HostDatastoreSystem.CreateNasDatastore" for object "ha-datastoresystem" on ESXi "