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Subject: Re: ZFS ARC memory requirements
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To: Daniel Feenberg <feenberg@nber.org>
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On 3/4/24 15:17, Daniel Feenberg wrote:

> We have a number of large ZFS stores used for both production and 
> backup. Most have 64GB and that seems more than enough. We use 
> compression, but do not do de-duplication.

Thanks (and to Mike too).




> I believe the advice you have 
> read accounts for de-duplication, which is memory-intensive.

No.
The handbook (among others) says 1GB/TB without dedup and 5GB/TB with dedup.

  bye
	av.