From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail1.g1.pair.com ([66.39.3.162]:34737 "EHLO mail1.g1.pair.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932127AbdJZPUj (ORCPT ); Thu, 26 Oct 2017 11:20:39 -0400 Date: Thu, 26 Oct 2017 17:20:41 +0200 From: Emmanuel Florac Subject: Re: Possible to mount this XFS at least temporarily to retrieve files? Message-ID: <20171026172041.0fe9d394@harpe.intellique.com> In-Reply-To: References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; boundary="Sig_/YjP6.iy2geZBbdZ.Xxy3kOr"; protocol="application/pgp-signature" Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: Carsten Aulbert Cc: linux-xfs@vger.kernel.org --Sig_/YjP6.iy2geZBbdZ.Xxy3kOr Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Le Wed, 25 Oct 2017 09:20:03 +0200 Carsten Aulbert =C3=A9crivait: > On a Debian Jessie machine installed back in October 2016 there a re a > bunch of 3TB disks behind an Adaptec ASR-6405[1] in RAID6 > configuration. Yesterday, one of the disks failed and was > subsequently replace. About an hour into the rebuild the 28TB xfs on > this block device gave up: This is a common problem with old adaptec RAID controllers. Don't do any IO while it's rebuilding, else it may corrupt data. After rebuild is complete, the volume will probably be easily repairable. DON'T DO ANYTHING UNTIL REBUILD IS COMPLETE. Particularly don't try running xfs_repair. Afterwards, install the very latest firmware for the controller, go in "Serial select" utility in BIOS and deactivate Disk write cache (this is the individual disks write caching). It will (mostly) avoid the problem in the future. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ --Sig_/YjP6.iy2geZBbdZ.Xxy3kOr Content-Type: application/pgp-signature Content-Description: Signature digitale OpenPGP -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlnx/UoACgkQX3jQXNUicVYmTwCeJuPp0TI5BGRBV2KBE/GgDEX9 F/kAoIZ2BKBULpjaJsbStSSAymK1uvFo =Wmlc -----END PGP SIGNATURE----- --Sig_/YjP6.iy2geZBbdZ.Xxy3kOr--