From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phil Turmel Subject: Re: Recreating RAID-5 after SATA controller failure and botched auto-assemble Date: Sun, 27 Dec 2015 18:11:26 -0500 Message-ID: <5680701E.1050808@turmel.org> References: <20151223105827.55498cb1@narfi.yggdrasil.draxit.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20151223105827.55498cb1@narfi.yggdrasil.draxit.de> Sender: linux-raid-owner@vger.kernel.org To: Wolfgang Draxinger , linux-raid@vger.kernel.org List-Id: linux-raid.ids On 12/23/2015 04:58 AM, Wolfgang Draxinger wrote: > Anyway, I'd appreciate if anyone knew how I could read-only assemble > the disks into an array that resembles the 42e59462... configuration to > see if I can pull anything useful from it. There are a few things on > it (hopefully left) that I'd like to extract, if possible. I think it's gone. You only have two members of the 42e59462 uuid array, and you need at least three. The others all have 2008 timestamps so could not have been part of the desired array at any recent date. Sorry. You *could* assemble the other array, though, to see what's there: mdadm -Afv /dev/mdX /dev/sdb1 /dev/sdb4 /dev/sdd With the failure mode you described, I doubt the series of rebuilds would have destroyed much. Phil