ZFS VDEV Types and ARC Interactions, New LXC Containers for TrueNAS 26 | TrueNAS Tech Talk (T3) E050

On today’s TrueNAS Tech Talk, it’s another round of technical information. Chris goes into the details on some of the additional VDEV types and how they interact with the ZFS Adaptive Replacement Cache (ARC) - should you make room for an extra SSD or two in your system? Kris also reveals the upcoming changes to the LXC Container ecosystem in TrueNAS 26 - now merged in the nightlies and ready for testing.

I would love to start testing the lxc migration, but sadly don’t have a second machine :sob:, but i have one question that may not be interesting enough to be answered on the podcast.

For GPU passthrough to work i had to manually add 2 parameters to the incus config file of my lxc. In the config part i had to add:

nvidia.driver.capabilities: compute,graphics,utility,video
nvidia.runtime: "true"

without these 2 parameters the gpu would not work in the lxc.
So my question is: will those manually added config options be automatically migrated, are they needed for the new backend or is an libvirt equivalent option already set by default?

the answer to the only “question” at the end did not touch on fully qualified domain names. Will those be available too?