solgaeDK
VMware Employee
VMware Employee

I have a similar issue, but a little more insight.

It seems there's an issue when using datastore browser in vSphere Web Client (or HTML5 client). The datastore browser works fine when you attempt to go into file browser (e.g. root directory of datastore), but if you attempt to browse to the VM files that are powered on, it hangs like the thread author described. However, the VMs themselves power on and operate just fine.

It seems when using datastore browser from vSphere Web Client (HTML5 Client), vCenter will use the last host that has access to the datastore (https://kb.vmware.com/s/article/1034573) as proxy for browsing datastores. When you browse to a VM folder that is powered on from that last host, the VM file browsing works fine. If the VM is powered on to any other host, the issue occurs. I'm guessing read requests are getting rejected when using datastore browser from the web client due to file lock.

This isn't exactly deal-breaking issue since the VM operations work fine otherwise, and you can still browse the files via shell access to ESXi host, but it's an annoying issue nonetheless. None of the issue happens on NFS 3.

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