https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229670
Josh Paetzel <jpaet...@freebsd.org> changed:
What |Removed |Added
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CC| |jpaet...@freebsd.org
--- Comment #6 from Josh Paetzel <jpaet...@freebsd.org> ---
The 1GB per TB rule is a stab at how much RAM is needed to cache the working
set and deliver RAM like read performance.
It's not really intended to indicate how much RAM you need to operate a pool.
(I've imported and used 1PB pools on heads with 32GB of RAM before)
The only real linear limit I know of is datasets/zvols consume ~ 1MB/RAM each.
So a system with 4000 datasets would need ~ 4GB RAM just for the dataset
metadata.
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