Add ability to modify ZFS parameters in TrueNAS SCALE
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Kris Moore July 18, 2024 at 5:55 PM
Thank you for submitting this feature request! To better accommodate and gauge community interest for future versions of TrueNAS we have moved the submission process to our TrueNAS Community Forums. If this feature is still important and relevant for consideration, please refer to the links below on how to submit it for community voting and TrueNAS roadmap review.
Feature Requests Forum:
https://forums.truenas.com/c/features/12
Feature Requests FAQ:
https://forums.truenas.com/t/about-the-feature-requests-category-readme-first/8802
Mason Moesch April 25, 2023 at 12:41 AM
I too would like to add to this. I’m running scale on a rather large system (40 thread, 760gb RAM) and seeing ~300gb of RAM sit idle isn’t attractive. I moved from Core to Scale due to some seemingly additional flexibility. I believe adding this feature as a use at your own risk is an acceptable solution.
Christopher Leach March 27, 2022 at 6:57 AM
I'm commenting to add a voice to this issue. Considering the change in Default ARC behavior and significant features in l2arc and special Vdevs, this seems like a must. I'd also like to add a voice to set the default tunables to more sane values, since l2arc_write_boost, and L2arc_feed_again can lead to unnecessary SSD wear when L2arc persistence is enabled.
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Katalon Platform
https://www.truenas.com/community/threads/solved-how-to-limit-max-arc-size-on-truenas-scale.89457/#post-676494
Add the ability in SCALE to easily modify ZFS parameters. Might be interesting to have an interface for adding parameter to any kernel module, not just ZFS, since sysctl stuff doesn't work with SCALE like it did in Core (Linux vs FreeBSD differences).
But a separate section just for tweaking ZFS could also be interesting, given TrueNAS is a ZFS based appliance.