4 ms·

Huh. More than just the normal page cache on other filesystems?

• tekla 11mo ago
  ZFS will eat up as much RAM as you give it as it caches files in memory as accessed.
  • ac29 11mo ago
    All filesystems do this (at least all modern ones, on linux)
• WarOnPrivacy 11mo ago
  Yes. Parent's comment matches everything I've heard. 32GB is a common recommendation for home lab setups. I run 32 in my TrueNAS builds (36TB and 60TB).
  • magicalhippo 11mo ago
    You can run it with much less. I don't recall the bare minimum but with a bit of tweaking 2GB should be plenty[1]. I recall reading some running it on a 512MB system, but that was a while ago so not sure if you can still go that low. Performance can suffer though, for example low memory will limit the size of the transaction groups. So for decent performance you will want 8GB or more depending on workloads. [1]: https://openzfs.github.io/openzfs-docs/Project%20and%20Community/FAQ.html#hardware-requirements https://openzfs.github.io/openzfs-docs/Project%20and%20Commu...