Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757310Ab0LSWVY (ORCPT ); Sun, 19 Dec 2010 17:21:24 -0500 Received: from mail-qw0-f46.google.com ([209.85.216.46]:49168 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757218Ab0LSWVW (ORCPT ); Sun, 19 Dec 2010 17:21:22 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=phXKpNFi4L6Gko3sL8Iv5lLSw+ieaEu0k1pLuoZzpTlx6FB0NvICMTGIqsoWchKQIs SJIuY8wZ//Z9Lm2shbLyhVAI+o42HTP/BZyh9To0HLc0qr1EEjL3fLLlXB+wB/kdsZoY pnLdbFSvtcSLvzMPq+a2Z1XvgIM0AboaizSnk= Message-ID: <4D0E855F.6040009@gmail.com> Date: Sun, 19 Dec 2010 17:21:19 -0500 From: Ric Wheeler User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc13 Lightning/1.0b3pre Thunderbird/3.1.7 MIME-Version: 1.0 To: Eric Sandeen CC: Justin Piszcz , Sandon Van Ness , linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org, Alan Piszcz Subject: Re: Is EXT4 the right FS for > 16TB? References: <4D0E3435.30104@van-ness.com> <4D0E3A63.606@sandeen.net> <4D0E5D67.6060504@sandeen.net> In-Reply-To: <4D0E5D67.6060504@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1500 Lines: 44 On 12/19/2010 02:30 PM, Eric Sandeen wrote: > On 12/19/10 1:14 PM, Justin Piszcz wrote: >> >> On Sun, 19 Dec 2010, Eric Sandeen wrote: >> >>> On 12/19/10 10:53 AM, Justin Piszcz wrote: >>>> Hi, >>>> >>>> Wow, there were no updates though after Eric's last comment.. >>>> Eric, have there been any improvements in the past 6 months? >>>> >>>> Or should one still steer clear from EXT4> 16TB? >>> There is still no released e2fsprogs which supports> 16T for >>> ext4, but testing of the not-released bits is welcomed... >>> Ted says a 16T-capable version is coming soon. There's still >>> work to be done there, though. >>> >>> -Eric >>> >> Thanks Eric for confirming. >> >> With 7 x 3TB HDD its now possible to breach 16TB (16.38TB) in RAID-5 so I >> suppose more people may start asking about this. > Agreed, 16T is not that much these days. > > As Ric said, XFS will handle it without problem, though. > > -Eric > XFS as a base file system is in fact very popular with commercial storage vendors just because of the size limitations. Also note that will really large drives, people are also really encouraged to use RAID-6 (larger drives take longer to rebuild, so you have more exposure to a double failure that would lose data in RAID-5) Ric -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/