From owner-freebsd-current@FreeBSD.ORG Sat Dec 15 15:57:12 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0689B16A420; Sat, 15 Dec 2007 15:57:12 +0000 (UTC) (envelope-from des@des.no) Received: from tim.des.no (tim.des.no [194.63.250.121]) by mx1.freebsd.org (Postfix) with ESMTP id AC71013C45D; Sat, 15 Dec 2007 15:57:11 +0000 (UTC) (envelope-from des@des.no) Received: from tim.des.no (localhost [127.0.0.1]) by spam.des.no (Postfix) with ESMTP id D61FE20A0; Sat, 15 Dec 2007 16:57:02 +0100 (CET) X-Spam-Tests: AWL X-Spam-Learn: disabled X-Spam-Score: -0.1/3.0 X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on tim.des.no Received: from ds4.des.no (des.no [80.203.243.180]) by smtp.des.no (Postfix) with ESMTP id C98202099; Sat, 15 Dec 2007 16:57:02 +0100 (CET) Received: by ds4.des.no (Postfix, from userid 1001) id BEE5D84492; Sat, 15 Dec 2007 16:57:02 +0100 (CET) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: Ivan Voras References: <47606C09.2070209@isc.org> <47609F0A.7010805@clearchain.com> <47609FE3.8040606@barafranca.com> <4760B444.1080604@clearchain.com> <06CAC7FC-DB58-441D-A6E0-76D1D8133393@tamu.edu> <86ir31xwlu.fsf@ds4.des.no> <476343B4.8080208@FreeBSD.org> Date: Sat, 15 Dec 2007 16:57:02 +0100 In-Reply-To: (Ivan Voras's message of "Sat\, 15 Dec 2007 11\:20\:24 +0100") Message-ID: <86tzmk54tt.fsf@ds4.des.no> User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.1 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-current@freebsd.org Subject: Re: ZFS melting under postgres... X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Dec 2007 15:57:12 -0000 Ivan Voras writes: > Maxim Sobolev wrote: > > That's no longer true. You can't get more than 5-10MB/s from > > seek-intensive RAID0 with two 15K drives, while 20-30MB/s is not a > > problem for the comparable priced/sized SSD drive. > Can you point me at a vendor with SSDs of such characteristics? Kingston CF Elite, 20 / 25 MBps write / read Kingston CF Ultimate, 40 / 45 MBps write / read SanDisk Extreme III CF, 20 MBps SanDisk Extreme IV CF, 45 MBps Sony CF 300X, 45 MBps These are just a few of those available from my regular supplier. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no