From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Brown Subject: Re: reshape from raid5 to raid6 failed -- and backup file is gone? Date: Fri, 23 Apr 2010 08:09:38 +1000 Message-ID: <20100423080938.5ef90287@notabene.brown> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Rich Rauenzahn Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Thu, 22 Apr 2010 14:46:32 -0700 Rich Rauenzahn wrote: > On Thu, Apr 22, 2010 at 11:32 AM, Rich Rauenzahn = wrote: > > The system froze sometime in the middle of the night, and oddly... = the > > --backup-file I specified last night is missing. =C2=A0Is there any= reason > > that mdadm would unlink it for a short span of time during the > > reshape? >=20 > I'm at the point now where I'm just looking for triage advice so I ca= n > work on it tonight. Most of the contents were backed up offsite, but = a > little bit out of date. Nothing critical, but inconvenient, like > recovery images for relative's systems. >=20 > Do I kill it and start over, or is there any hope of recovering from > the reshape? It is very odd that the backup file disappeared. What is /.MEDIA/tmp ?? Not a tmpfs filesystem I hope... You could hack mdadm to assemble the array even without a backup file. Get 'Grow_restart' to always return 0. Then most of your data should be assessible, but the could be a section= in the middle which is currupt. NeilBrown -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html