From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phil Turmel Subject: Re: Raid 10 Issue Date: Thu, 05 Mar 2015 15:07:46 -0500 Message-ID: <54F8B792.9060206@turmel.org> References: <1888475554.226351.1425578160090.JavaMail.open-xchange@app09.ox.hosteurope.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1888475554.226351.1425578160090.JavaMail.open-xchange@app09.ox.hosteurope.de> Sender: linux-raid-owner@vger.kernel.org To: Stefan Lamby , "linux-raid@vger.kernel.org" List-Id: linux-raid.ids On 03/05/2015 12:56 PM, Stefan Lamby wrote: > Hello List. > > I was setting up a new machine using ubuntu 14.04.02 lts using its installer, > configuring a raid 10 with 2 disks and lvm on top of it. I was using 2 disks and > now I like to add 2 more disks to the array so i want to end up with 4 disks, no > spare. > > Searching the internet I found that I am not able to --grow the array with the > mdadm version this ubuntu is using (v3.2.5). > Is that right? > > So I decided to build a new array that way and try to move my data afterwards, > which failed: > (Is it OK to do it that way or do you recommend another?) No, you should be able to do this. Probably without any shutdown. Please show the full layout of your drives, partitions, and lvm. I suggest lsdrv[1] for working layouts. If your email is set to use utf8, just paste the result in a reply. Regards, Phil Turmel [1] https://github.com/pturmel/lsdrv