I submitted a PR (https://github.com/oVirt/ovirt-site/pull/2433) over a year ago to capture this exact issue.

The NFS troubleshooting page remains the same wth no mention of this Ubuntu NFS Server issue:
https://github.com/oVirt/ovirt-site/blob/main/source/develop/troubleshooting-nfs-storage-issues.md

On Wed, Aug 31, 2022 at 5:10 PM <thilburn@generalpacific.com> wrote:
Hello,
 I was having trouble with getting an Ubuntu 22.04 NFS share working and after searching for hours I was able to figure out what was needed. Below is what I found if anyone else runs into this.

My error was
engine.log
"...Unexpected return value: Status [code=701, message=Could not initialize cluster lock: ()]"

Host
supervdsm.log
 -open error -13 EACCES: no permission to open /ThePath/ids
 -check that daemon user sanlock *** group sanlock *** has access to disk or file.

The fix was
changing /etc/nfs.conf manage-gids=y ( Which is the default ) to # manage-gids=y ( Commenting this sets the default which is no )
It looks like in the past the fix was to change /etc/default/nfs-kernel-server Line RPCMOUNTDOPTS="--manage-gids" which I didn't need to change.
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