From: "Amir G." Subject: Re: ext over RAID-[56]? Date: Sun, 17 Oct 2010 12:38:49 +0200 Message-ID: References: <25B374CC0D9DFB4698BB331F82CD0CF20D5FE3@wdscexbe08.sc.wdc.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-ext4@vger.kernel.org To: Daniel Taylor Return-path: Received: from mail-qw0-f46.google.com ([209.85.216.46]:37020 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932281Ab0JQKiy convert rfc822-to-8bit (ORCPT ); Sun, 17 Oct 2010 06:38:54 -0400 Received: by qwa26 with SMTP id 26so1097067qwa.19 for ; Sun, 17 Oct 2010 03:38:51 -0700 (PDT) In-Reply-To: <25B374CC0D9DFB4698BB331F82CD0CF20D5FE3@wdscexbe08.sc.wdc.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Sun, Oct 17, 2010 at 2:16 AM, Daniel Taylor = wrote: > One of the program managers here asked me a question that I couldn't = answer: > > with ext[34] over a RAID-[56] volume, what protection against data > corruption > and loss of existing data does the file system provide for the case o= f an > incomplete update of the RAID "stripe"? > > I know that anyone with any usable brain cells has their data server = on a > nice > UPS, but not all customers are so equipped, and he's concerned about > corruption > during a power failure (loss of unwritten data is OK). > > I can't see any configuration options that would help but I could eas= ily be > missing something. =A0Any ideas? > I don't think you are missing something. check out this article: http://lwn.net/Articles/349970/ -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html