From owner-freebsd-fs@FreeBSD.ORG Thu Feb 20 15:25:33 2014 Return-Path: Delivered-To: fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 14632219 for ; Thu, 20 Feb 2014 15:25:33 +0000 (UTC) Received: from wonkity.com (wonkity.com [67.158.26.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 9C2261CFB for ; Thu, 20 Feb 2014 15:25:32 +0000 (UTC) Received: from wonkity.com (localhost [127.0.0.1]) by wonkity.com (8.14.8/8.14.8) with ESMTP id s1KFPO33069538 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 20 Feb 2014 08:25:24 -0700 (MST) (envelope-from wblock@wonkity.com) Received: from localhost (wblock@localhost) by wonkity.com (8.14.8/8.14.8/Submit) with ESMTP id s1KFPMc9069535; Thu, 20 Feb 2014 08:25:22 -0700 (MST) (envelope-from wblock@wonkity.com) Date: Thu, 20 Feb 2014 08:25:22 -0700 (MST) From: Warren Block To: Willem Jan Withagen Subject: Re: What types of SSDs to use..... In-Reply-To: <53060C89.8040500@digiware.nl> Message-ID: References: <5305F8B0.1060308@digiware.nl> <783388CA2911497B98479F1187F49915@multiplay.co.uk> <53060C89.8040500@digiware.nl> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (wonkity.com [127.0.0.1]); Thu, 20 Feb 2014 08:25:24 -0700 (MST) Cc: fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Feb 2014 15:25:33 -0000 On Thu, 20 Feb 2014, Willem Jan Withagen wrote: > On 20-2-2014 14:06, Steven Hartland wrote: >> The "disconnect" issue is generally related to Sandforce based devices. >> >> Its a lot better on later devices / firmware and does depend on the >> controller / MB they are connected to. > > Any easy way to detect these? Or is it just a matter of reading the > specsheets? Hoping that the controller chipset is mentioned. > >> We have ~ 1000 SSD's in production most being consumer grade Sandforce >> based and disks, from various manufactures, drops are still fairly rare >> now; I'd estimate ~ 1 or 2 per month. >> >> Samsung 840 Pro's seem pretty good too for consumer devices. > > I got these offered a few times, they are quite competatively priced. The Plextor M5P models have a Marvell controller and are competitive with the Samsung 840 Pro. The Toshiba SSDs also have Marvell controllers and are worth a look. However, I have not used either for ZFS.