I would like to see an easy, supported method for enabling crossmnt on shares as well.
Perhaps it would help to explain the use case I’m thinking of? We have a software repository mirror and want to present different systems with different versions of the mirror. Some test systems should get bleeding edge software, most get a version which has undergone testing on those test systems, a few get a very well tested version of the software.
It seems like the easy way to do this is to use symlinks to the old repo snapshots. Bleeding-edge is the raw mirror, Stable is a link to the snapshot from a few days ago, Safe is a symlink to a snapshot from two weeks ago. All we need is a script to rotate the symlinks each day and we’re good.
In this scenario the crossmnt shares are only exported to the web servers which provide the mirrors to client systems and the data is just a copy of publicly-available code so the security implications of crossmnt are minor. Obviously there are other ways to make versions of mirrors but this seems like a simple and elegant solution to me.
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Another important use case is allowing users to access snapshots of their data over NFS without support intervention. For instance, users can recover accidentally deleted files from their home directories which are shared from TrueNAS over NFS.
Please reach out to your support representative, this should be possible today.
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Is there documentation for this somewhere? I’d prefer not to bother support with the question if instructions to enable this feature are available.
Thanks for that info Mark, but it doesn’t pertain to the original feature request. What was being requested is the ability for end users to have access to the .zfs/snapshot directory via an NFS mount so they can perform recovery actions without the need of a TrueNAS administrator’s intervention.
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25.04 with enterprise license.
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Thanks! I didn’t realize this was a 25.04 feature. We’ve been advised to hold off on upgrading our system to Fangtooth as it isn’t on the supported versions list yet (Software Status - TrueNAS Roadmap - Open Source NAS Software), but it’s good to know we’ll have that functionality available once we upgrade.
@kwt5152 I’m happy to help here. If you open up a ticket and ask about this topic, include the link to this post so it finds it’s way to me and we can have a conversation about this or I can help you set it up.
