From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Matthew - RAID" Subject: Re: Call for RAID-6 users Date: Mon, 26 Jul 2004 19:05:20 -0700 Sender: linux-raid-owner@vger.kernel.org Message-ID: <1090893920.32728.201130124@webmail.messagingengine.com> References: <20040726213811.GA17363@jim.sh> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20040726213811.GA17363@jim.sh> To: Jim Paris , linux-raid List-Id: linux-raid.ids On Mon, 26 Jul 2004 17:38:11 -0400, "Jim Paris" said: > > Thus, if you have used RAID-6 and have good or bad experiences, I'd > > like to know them as soon as possible. > > Just tried setting up a RAID-6 on a new server, and I'm seeing > complete filesystem corruption. > # cd /mnt/root ; tar --one-file-system -cf - / | tar --preserve -xvf - ; > cd / > # umount /mnt/root > # reiserfsck /dev/md1 # <-- many, many errors My reading of things was that /proc and any in-use mount points needed to be handled specially when using tar to do the copy. Then again, the --one-file-system argument could be taking care of that; I haven't heard of using it. Is it OK to use tar on / including /proc and /dev like this? cpio, cp, tar - I've seen HOWTOs use all three to copy / !