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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This is a cryptographically signed message in MIME format. --------------ms080502080300090605020806 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 11/10/2018 18:07, joe mcguckin wrote: > NVMe drives are pretty cheap and there=E2=80=99s al least one manufactu= rer 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 wit= h all flash instead of spinning disks? > > Does ZFS have to have any special knowledge that the storage is flash b= ased? > 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.=C2=A0 In addition my "sandbox" machine has a similar configurat= ion 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. --=20 Karl Denninger karl@denninger.net <mailto:karl@denninger.net> 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