From owner-freebsd-stable@FreeBSD.ORG Fri Jan 7 01:29:18 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8CAC7106566C for ; Fri, 7 Jan 2011 01:29:18 +0000 (UTC) (envelope-from jyavenard@gmail.com) Received: from mail-iw0-f182.google.com (mail-iw0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id 4CAB48FC16 for ; Fri, 7 Jan 2011 01:29:18 +0000 (UTC) Received: by iwn39 with SMTP id 39so17076511iwn.13 for ; Thu, 06 Jan 2011 17:29:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=6UOJ3tzT3Ou1WQ/HBKPFFEB0w7tPoUqrgS8Jp/7nQlU=; b=eMlMM5sRQ6sKCTVqlWtkRT6Oyi3ieAmHap1cgJHzBnjiTV3NsZFWrqZ0q2d3S5z9oQ kkim67/fXg7vt1VsfPquton8ILZ7hmi5E9hpTJo9xy5Dx6899A/70+dMY4otC+AP2Dks NFdJryKYmlXuPtvFyMMarMtozS/sguRWWJJnc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=dOZfknwJkURYT12TN+QHsec8XOzfpVSOotXVBSOAWBQBSB5jkfBbwT69Zb6tbovrMJ +3KRFS+AYMh00u952/HFoDwF0l+PfsEb1XoWHi8X8LEg4WlHdTFvbBiiMJ2KkjcClpO7 V4K5vhw0jZwRWdZHBOnLjiW6zqQj20WPTwS4k= MIME-Version: 1.0 Received: by 10.42.213.201 with SMTP id gx9mr264431icb.330.1294363757665; Thu, 06 Jan 2011 17:29:17 -0800 (PST) Received: by 10.42.172.69 with HTTP; Thu, 6 Jan 2011 17:29:17 -0800 (PST) In-Reply-To: References: <4D1C6F90.3080206@my.gd> <4D21E679.80002@my.gd> <84882169-0461-480F-8B4C-58E794BCC8E6@my.gd> <488AE93A-97B9-4F01-AD0A-0098E4B329C3@my.gd> Date: Fri, 7 Jan 2011 12:29:17 +1100 Message-ID: From: Jean-Yves Avenard To: Chris Forgeron Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: "freebsd-stable@freebsd.org" , Artem Belevich Subject: Re: ZFS - moving from a zraid1 to zraid2 pool with 1.5tb disks X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Jan 2011 01:29:18 -0000 On 6 January 2011 22:26, Chris Forgeron wrote: > You know, these days I'm not as happy with SSD's for ZIL. I may blog abou= t some of the speed results I've been getting over the last 6mo-1yr that I'= ve been running them with ZFS. I think people should be using hardware RAM = drives. You can get old Gigabyte i-RAM drives with 4 gig of memory for the = cost of a 60 gig SSD, and it will trounce the SSD for speed. > > I'd put your SSD to L2ARC (cache). Where do you find those though. I've looked and looked and all references I could find was that battery-powered RAM card that Sun used in their test setup, but it's not publicly available..