Results 1 to 3 of 3

Thread: failed Raid 1 drive - what to do.

  1. #1
    Join Date
    Nov 2011
    Beans
    20

    failed Raid 1 drive - what to do.

    Ubuntu 12.04.2

    ok one of my seagate raid 1 disks has failed:
    Apr 19 02:29:14 MediaServer kernel: [29600647.522090] md/raid1:md0: sda1: rescheduling sector 3998908672
    Apr 19 02:29:17 MediaServer kernel: [29600650.684506] md/raid1:md0: read error corrected (8 sectors at 3999170856 on sda1)
    Apr 19 02:29:20 MediaServer kernel: [29600653.899771] md/raid1:md0: read error corrected (8 sectors at 3999170864 on sda1)
    Apr 19 02:29:20 MediaServer kernel: [29600654.053368] md/raid1:md0: redirecting sector 3998908672 to other mirror: sda1
    Apr 19 02:29:46 MediaServer kernel: [29600680.046827] md/raid1:md0: sda1: rescheduling sector 4002066432
    Apr 19 02:29:49 MediaServer kernel: [29600683.014274] md/raid1:md0: sda1: rescheduling sector 4002066688
    Apr 19 02:29:53 MediaServer kernel: [29600686.309791] md/raid1:md0: read error corrected (8 sectors at 4002328808 on sda1)
    Apr 19 02:29:56 MediaServer kernel: [29600689.500120] md/raid1:md0: read error corrected (8 sectors at 4002328816 on sda1)
    Apr 19 02:29:59 MediaServer kernel: [29600692.673852] md/raid1:md0: read error corrected (8 sectors at 4002328824 on sda1)
    Apr 19 02:29:59 MediaServer kernel: [29600692.673860] md/raid1:md0: redirecting sector 4002066432 to other mirror: sda1
    Apr 19 02:30:02 MediaServer kernel: [29600695.806029] md/raid1:md0: read error corrected (8 sectors at 4002328832 on sda1)
    ......
    Apr 19 03:04:24 MediaServer kernel: [29602751.941133] INFO: task jbd2/md0-8:562 blocked for more than 120 seconds.
    Apr 19 03:04:24 MediaServer kernel: [29602751.943215] jbd2/md0-8 D ffffffff8180cbe0 0 562 2 0x00000000
    Apr 19 03:37:24 MediaServer kernel: [29604725.744315] md/raid1:md0: sda1: rescheduling sector 4015099304
    Apr 19 03:37:24 MediaServer kernel: [29604725.745457] md/raid1:md0: sda1: rescheduling sector 4015099560
    Apr 19 03:37:24 MediaServer kernel: [29604725.885798] md/raid1:md0: Disk failure on sda1, disabling device.
    Apr 19 03:37:24 MediaServer kernel: [29604725.885798] md/raid1:md0: Operation continuing on 1 devices.
    Apr 19 03:37:24 MediaServer kernel: [29604725.894073] md/raid1:md0: redirecting sector 4015099304 to other mirror: sdc1
    Apr 19 03:37:24 MediaServer mdadm[1426]: Fail event detected on md device /dev/md0, component device /dev/sda1
    Apr 19 03:37:24 MediaServer kernel: [29604726.131057] md/raid1:md0: redirecting sector 4015099560 to other mirror: sdc1

    I have the data all backup on another disk which is mounted in the server.

    How do I physically know what disk is sda1 as both disks are the same make?

  2. #2
    Join Date
    Mar 2010
    Location
    Squidbilly-land
    Beans
    12,118
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: failed Raid 1 drive - what to do.

    Unplug 1 of them? Is all the data gone or is it the same as before? 50/50 shot on the first attempt, regardless you will know which disk it is that has failed.

  3. #3
    Join Date
    Feb 2007
    Location
    West Hills CA
    Beans
    10,048
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: failed Raid 1 drive - what to do.

    You can install smartmontools to get the drives' serial number:

    Code:
    sudo apt-get install smartmontools
    sudo smartctl -a /dev/sda
    sudo smartctl -a /dev/sdb
    sudo smartctl -a /dev/sdc
    Last edited by tgalati4; May 24th, 2015 at 03:10 AM.
    -------------------------------------
    Oooh Shiny: PopularPages

    Unumquodque potest reparantur. Patientia sit virtus.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •