I have a question regarding ZFS NFS exports

 

To properly shared ZFS datasets it's required to have the /etc/exports.d/zfs.exports configured for the shares

This obviously doesn't persist after a reboot because it's not part of the saveable file system

 

The only way I've got around it so far is to run a user script at array start to run the ZFS commands to populate the file again

It works ok but it can fail if there is some race condition if it executes the command before the zfs pool imports

 

So not sure if there is something already implemented I'm missing for this to persist or it would have to be a feature request for NFS shares?

 

If you just manually create a folder in the ZFS pool, the standard NFS shares work, but you lose the ability for snapshots etc which isn't ideal and one of the best points of ZFS

Would using zfs to manage the shares work for your use case?

 

https://blog.programster.org/sharing-zfs-datasets-via-nfs

Yes that's what I have to do to get it working

I mount the NFS shares with the ZFS commands in the user scripts plugin

I set it to run at First Array Start Only

 

Those commands create the file /etc/exports.d/zfs.exports

 

If I reboot that file does not persist so the commands need to be run again to add the shares

 

I've done it a few times and it works but if I take it down manually to do something and bring it back up again it won't run and I have to remember to do it

Or I'm sure at some point if the plugin breaks with an update or somehow the command runs before the pool is imported it will break it

 

If it could persist somehow by Unraid managing the command itself to run when the pool mounts that would be awesome

I'm sure at some point someone else is going to run into this issue

Actually reading that article this stands out

"An important thing to bear in mind is that you will need to run the steps below for sharing on every pool/dataset that you wish to share, no matter the hierarchy."

 

With Unraid settings as a ZFS pool you can only export the root pool, it doesn't do any of the datasets

Which makes sense why I can see all the folders when I mount the NFS drive that way but can't see any files

 

So I would need an option in Unraid to be able to mount all the datasets as well

 

The way I do it with the script now works because the commands replicates from the top down to all the datasets

I would recommend creating a feature request

Hi i need this too. The article linked before is great.

 

Do you know if i need to run this every time i restart my server?

 

zfs set sharenfs=on myzfs-pool/dataset/sub-dataset

 

41 minutes ago, shinexx said:

Do you know if i need to run this every time i restart my server?

Should only be needed once.