# \#optimization

**URL:** https://forums.spacerex.co/tag/optimization/51.md

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## [One of the best ZFS tunable parameters out there - ZFS.arc\_meta\_min](https://forums.spacerex.co/t/one-of-the-best-zfs-tunable-parameters-out-there-zfs-arc-meta-min/601)

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**Author:** [@Will](https://forums.spacerex.co/u/Will)\
**Replies:** 2\
**Last updated:** [June 26, 2023, 2:40pm UTC](https://forums.spacerex.co/t/one-of-the-best-zfs-tunable-parameters-out-there-zfs-arc-meta-min/601 "2023-06-26T14:40:26Z")

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So one of the best tunables for ZFS is setting the arc\_meta\_min parameter to something like 10 gigs, if you have more than ~32 gigs of RAM. Metadata is incredibly small on ZFS, so my entire 40 TB system has only about 7 …