From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wol Subject: Re: Reassembling Raid5 in degraded state Date: Mon, 13 Jan 2020 18:46:40 +0000 Message-ID: <7b7c8d20-6402-485b-5251-956637acb7db@youngman.org.uk> References: <54384251-9978-eb99-e7ec-2da35f41566c@inview.de> <5E1C86F4.4070506@youngman.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Language: en-GB Sender: linux-raid-owner@vger.kernel.org To: Song Liu Cc: Christian Deufel , linux-raid , NeilBrown List-Id: linux-raid.ids On 13/01/2020 17:31, Song Liu wrote: >> Song, Neil, >> >> Just a guess as to what went wrong, but the array event count does not >> match the disk counts. Iirc this is one of the events that cause an > Which mismatch do you mean? > >> assemble to stop. Is it possible that a crash at the wrong moment could >> interrupt an update and trigger this problem? > It looks like sdc1 failed first. Then sdd1 and sdf1 got events for sdc1 failed. > Based on super block on sdd1 and sdf1, we already have two failed drive, > so assemble stopped. > > Does this answer the question? > Sorry yes it does. My fault for mis-reading the logs the OP sent. Cheers., Wol