Date: Thu, 31 Jul 2014 10:33:26 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: Paul Kraus <paul@kraus-haus.org> Cc: "freebsd-questions@FreeBSD.org" <freebsd-questions@FreeBSD.org> Subject: Re: FreeBS(s)D Message-ID: <alpine.BSF.2.11.1407311021520.34015@wonkity.com> In-Reply-To: <C18DD449-3AF8-4F9C-852B-98EBC97C3DDE@kraus-haus.org> References: <53DA3AF8.2090600@webrz.net> <alpine.BSF.2.11.1407310843430.34015@wonkity.com> <C18DD449-3AF8-4F9C-852B-98EBC97C3DDE@kraus-haus.org>
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On Thu, 31 Jul 2014, Paul Kraus wrote: > On Jul 31, 2014, at 10:49, Warren Block <wblock@wonkity.com> wrote: >> >> I've used Plextor, Samsung, and Toshiba with FreeBSD, preferring the Marvell controllers. > > Good point Warren. The controllers matter (not just for the SSD but > for ZFS as well). You want plain AHCI controllers for ZFS, you do NOT > want RAID controllers. True, but I was talking about the onboard controllers on the SSDs themselves. There are two common ones out there: Marvell and Sandforce. Sandforce controllers show high speeds on compressible data, but seem to have more problems. I have used Kingston SSDs with Sandforce controllers in a couple of Windows machines without problems, but not for myself or for any serious duration with FreeBSD. Samsung controllers are or were Marvell-based but customized. Plextor uses LiteOn SSDs with Marvell controllers and custom firmware. Intel has custom firmware on Sandforce controllers for many of their new drives. Other vendors use stock controllers and stock firmware, Crucial being big on the Marvell side, and many others using Sandforce.
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