From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Boissonneault Subject: Re: Upgrading a software RAID Date: Sat, 30 May 2009 14:35:24 -0400 Message-ID: <4A217C6C.7080301@usherbrooke.ca> References: <4A1EA095.9090406@usherbrooke.ca> <4A217BA8.1080208@tmr.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4A217BA8.1080208@tmr.com> Sender: linux-raid-owner@vger.kernel.org To: Bill Davidsen Cc: robin@robinhill.me.uk, linux-raid@vger.kernel.org List-Id: linux-raid.ids >> >> I can not install more drives in the computer. It is a home theater >> computer in a small case. I was expecting to be able to let the raid >> manage the copies itself. >> >> If the / was on a RAID5, would it be able to boot with 2 disks ? >> If so, is it possible to convert my RAID0 to a RAID5 ? >> For example, I could boot on a CD, backup / onto /home, delete the >> RAID0 array and recreate it as RAID5, then restore the backup. Would >> this work ? > > Based on my testing (somewhat old now) and regular use, I would say > raid10 is probably your best bet. It's fast and secure, and with the > -f2 option for "far" copies it's able to give high transfer rates. Doesn't RAID10 means RAID 1+0, which requires 4 disks ?