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Date:      Mon, 12 Nov 2018 09:19:19 -0600
From:      Karl Denninger <karl@denninger.net>
To:        freebsd-fs@freebsd.org
Subject:   Re: ZFS flash systems
Message-ID:  <1f1ba62a-1a9d-4430-d18f-65fade302f41@denninger.net>
In-Reply-To: <B6E30DCC-2E05-4849-A04B-E8F740DF1370@via.net>
References:  <B6E30DCC-2E05-4849-A04B-E8F740DF1370@via.net>
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[-- Attachment #1 --]
On 11/10/2018 18:07, joe mcguckin wrote:
> NVMe drives are pretty cheap and there’s al least one manufacturer that makes a JBOD that takes 24 or so NVMe drives.
> So, will ZFS on FreeBSD perform well if a made a largish ZFS filer  with all flash instead of spinning disks?
>
> Does ZFS have to have any special knowledge that the storage is flash based?
>

I am running a fairly-heavy transactional (Postgres) database backend on
FreeBSD 11-STABLE with ZFS on top of flash-based drives and have had no
problems.  In addition my "sandbox" machine has a similar configuration
but with a smaller number of units, also flash-based (although not NVMe;
they're SATA attached on a JBOD LSI controller) and that's been stable
as well.

-- 
Karl Denninger
karl@denninger.net <mailto:karl@denninger.net>
/The Market Ticker/
/[S/MIME encrypted email preferred]/

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