From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wols Lists Subject: Re: md failing mechanism Date: Fri, 22 Jan 2016 20:00:02 +0000 Message-ID: <56A28A42.8060707@youngman.org.uk> References: <56A26E11.2090703@yandex.ru> <56A28309.9080806@turmel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <56A28309.9080806@turmel.org> Sender: linux-raid-owner@vger.kernel.org To: Dark Penguin , linux-raid@vger.kernel.org List-Id: linux-raid.ids On 22/01/16 19:29, Phil Turmel wrote: > What you've described does sound like a bug, maybe. It also sounds > similar to traditional timeout mismatch caused by cheap desktop drives > used in a raid array. man smartctl smartctl -i /dev/sd-dodgy-drive If I run that on my drives I get smartctl 6.4 2015-06-04 r4109 [x86_64-linux-4.1.12-gentoo] (local build) Copyright (C) 2002-15, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Seagate Barracuda 7200.14 (AF) Device Model: ST3000DM001-1CH166 Serial Number: W1F50K0F LU WWN Device Id: 5 000c50 0737a98a4 Firmware Version: CC27 User Capacity: 3,000,592,982,016 bytes [3.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 7200 rpm Form Factor: 3.5 inches Device is: In smartctl database [for details use: -P show] ATA Version is: ACS-2, ACS-3 T13/2161-D revision 3b SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s) Local Time is: Fri Jan 22 19:56:47 2016 GMT SMART support is: Available - device has SMART capability. SMART support is: Disabled NOTE THAT SMART SUPPORT IS DISABLED. Yes I know I'm running with dodgy drives and a dodgy config, but smart support should be enabled and things like ERC should be turned on. If they're not ... Cheers, Wol