From owner-freebsd-fs@FreeBSD.ORG Fri Nov 16 19:38:13 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 18C6B7E8; Fri, 16 Nov 2012 19:38:13 +0000 (UTC) (envelope-from stevenschlansker@gmail.com) Received: from mail-pa0-f54.google.com (mail-pa0-f54.google.com [209.85.220.54]) by mx1.freebsd.org (Postfix) with ESMTP id C91368FC0C; Fri, 16 Nov 2012 19:38:12 +0000 (UTC) Received: by mail-pa0-f54.google.com with SMTP id kp6so2224435pab.13 for ; Fri, 16 Nov 2012 11:38:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=content-type:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to:x-mailer; bh=3rBTqRn9bWc/Xwv2dqlrUkGgAuK4p4H0xdZ/+yysZNU=; b=hvUYqw9iLjnzC4uWsxTz3K3bis4HhMcjJoLzXNQnpaNSeXsFNraUlqVBE1B7l1TnjJ hrX9sXKxv+FewMCT/NfOkvDQDYSCNqlmnYdUzB0mIB1EvxMF5BnGqdJQsIICeh2D+ndg /JoFDL2iEyIomsKDYdu75AniYCdH0u6bTy0SeLgL7m8nejE2Tc8kPW8RejgK96JRPMVh v5o1tk2xCGAPPv+v6dyb3ZREY5x3/6fON9dIv6oxAb/BAyqE/P5BusRr/CZ0PpfsHsDg tdB0yv/3Sb2UTywrls1jHcX3qbkfw516ZtXZOu4jD35pPOryWrvm78XIofnumrhJF32P WWvA== Received: by 10.66.88.136 with SMTP id bg8mr15572431pab.54.1353094692357; Fri, 16 Nov 2012 11:38:12 -0800 (PST) Received: from anesthetize.dyn.corp.trumpet.io ([207.86.77.58]) by mx.google.com with ESMTPS id v9sm1528857paz.6.2012.11.16.11.38.11 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 16 Nov 2012 11:38:11 -0800 (PST) Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 6.2 \(1499\)) Subject: Re: RHEL to FreeBSD file server From: Steven Schlansker In-Reply-To: Date: Fri, 16 Nov 2012 11:38:13 -0800 Content-Transfer-Encoding: quoted-printable Message-Id: <16B803FB-0964-4237-8F25-291470E7EFB5@gmail.com> References: <50A130B7.4080604@cse.yorku.ca> <20121113043409.GA70601@neutralgood.org> <50A2B95D.4000400@cse.yorku.ca> <50A2F804.3010009@freebsd.org> <20121115001840.GA27399@FreeBSD.org> <20121115102704.6657ee52@suse3> <20121116091747.2c1bfc55@suse3> To: Zaphod Beeblebrox X-Mailer: Apple Mail (2.1499) Cc: freebsd-fs@freebsd.org, John X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Nov 2012 19:38:13 -0000 On Nov 16, 2012, at 11:24 AM, Zaphod Beeblebrox = wrote: > On Fri, Nov 16, 2012 at 3:17 AM, Rainer Duffner = wrote: >> Am Fri, 16 Nov 2012 01:03:19 -0500 >> schrieb Zaphod Beeblebrox : >=20 >>> The only price I see is $2449 on Dell's website. Ouch. For 8G. >=20 >> I saw it for 1800=80 somewhere. >> FusionIO is 10k for 320G. >>=20 >> But I've never seen FusionIO used in a Fileserver - probably doesn't >> make sense, price-wise. >>=20 >> IIRC, the OP wanted to build a 16T fileserver. So he will have to = spend >> some cash anyway. I think it's a safe assumption that Nexenta and = its >> partners have spent quite some time evaluating the various options. > > go on > to connect 24 (or 30) drives. If you're using "green" 2T's, the speed > of 4 disks on one channel is about half of the speed of > 1-disk-per-channel. > >=20 > The reason I say all this... is that this config runs about $3500-ish > here in Canada (where green 2T's are ~$109). The ZeusRAM drive up > there is 2/3 of that. Curious -- have you been running this setup for any length of time? = There's a fair number of horror stories about the "green" drives in particular. The power management is very aggressive about spin down, causing many = unneeded power on/off cycles, dramatically reducing lifespan in a RAID = configuration. Additionally, supposedly the error recovery is inappropriate leading to = drive failure events. (I believe the feature is known as TLER, time-limited = error recovery) Have you run into this?