From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-f47.google.com ([209.85.218.47]:36042 "EHLO mail-oi0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753495AbcIGAf1 (ORCPT ); Tue, 6 Sep 2016 20:35:27 -0400 Received: by mail-oi0-f47.google.com with SMTP id w78so577665oie.3 for ; Tue, 06 Sep 2016 17:35:26 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <0cad7942-096c-1ea4-bf31-a4e959bcc4f8@gmail.com> References: <0cad7942-096c-1ea4-bf31-a4e959bcc4f8@gmail.com> From: Gareth Pye Date: Wed, 7 Sep 2016 10:35:25 +1000 Message-ID: Subject: Re: Recommendation on raid5 drive error resolution To: "Austin S. Hemmelgarn" Cc: Chris Murphy , linux-btrfs Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Things have been copying off really well. I'm starting to suspect the issue was the PSU which I've swapped out. What is the line I should see in dmesg if the degraded option was actually used when mounting the file system? On Thu, Sep 1, 2016 at 9:25 PM, Austin S. Hemmelgarn wrote: > On 2016-08-31 19:04, Gareth Pye wrote: >> >> ro,degraded has mounted it nicely and my rsync of the more useful data >> is progressing at the speed of WiFi. >> >> There are repeated read errors from one drive still but the rsync >> hasn't bailed yet, which I think means there isn't any overlapping >> errors in any of the files it has touched thus far. Am I right or is >> their likely to be corrupt data in the files I've synced off? > > Unless you've been running with nocow or nodatasum in your mount options, > then what you've concluded should be correct. I would still suggest > verifying the data by some external means if possible, this type of > situation is not something that's well tested, and TBH I'm amazed that > things are working to the degree that they are. > >> >> On Wed, Aug 31, 2016 at 7:46 AM, Gareth Pye wrote: >>> >>> Or I could just once again select the right boot device in the bios. I >>> think I want some new hardware :) >>> >>> On Wed, Aug 31, 2016 at 7:23 AM, Gareth Pye >>> wrote: >>>> >>>> On Wed, Aug 31, 2016 at 4:28 AM, Chris Murphy >>>> wrote: >>>>> >>>>> But I'd try a newer kernel before you >>>>> give up on it. >>>> >>>> >>>> >>>> Any recommendations on liveCDs that have recent kernels & btrfs tools? >>>> For no apparent reason system isn't booting normally either, and I'm >>>> reluctant to fix that before at least confirming the things I at least >>>> partially care about have a recent backup. >>>> >>>> -- >>>> Gareth Pye - blog.cerberos.id.au >>>> Level 2 MTG Judge, Melbourne, Australia >>> >>> >>> >>> >>> -- >>> Gareth Pye - blog.cerberos.id.au >>> Level 2 MTG Judge, Melbourne, Australia >> >> >> >> > -- Gareth Pye - blog.cerberos.id.au Level 2 MTG Judge, Melbourne, Australia