• Salvage live failing server

    From john doe@21:1/5 to All on Mon Mar 20 19:10:01 2023
    Debians,

    I'm seeing some alarming MSGs (E.G: ' blk_update_request: I/O error, dev
    sda, sector N') in my server's log.
    As it's read-only, I can not install smartmontools to investigate further.

    This server is to be used until a new server is ready, is there anything
    that I can do to keep it running?

    Any other ideas is welcome!

    --
    John Doe

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  • From tomas@tuxteam.de@21:1/5 to Andrew M.A. Cater on Mon Mar 20 19:50:01 2023
    On Mon, Mar 20, 2023 at 06:33:49PM +0000, Andrew M.A. Cater wrote:
    On Mon, Mar 20, 2023 at 07:01:22PM +0100, john doe wrote:
    Debians,

    I'm seeing some alarming MSGs (E.G: ' blk_update_request: I/O error, dev sda, sector N') in my server's log.
    As it's read-only, I can not install smartmontools to investigate further.

    [...]

    Run, don't walk, to another computer and order new disks and shut this one down immediately. If the file system has gone read only because of errors, you need to shut it down NOW, maybe, and hope that you can recover data when it boots up.

    Basically yes, but that'll depend on what is more valuable. If
    it's the data, that's spot-on. The longer the thing runs, the
    higher the risk of loss. If it's the uptime, then don't touch
    it and don't shut it down for as long as possible.

    The data would be less valuable if you have backups which will
    be "good enough" to resucitate your set up from.

    Good luck, but it's probably too late.

    Crossing fingers.

    Cheers
    --
    t

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  • From Andrew M.A. Cater@21:1/5 to john doe on Mon Mar 20 19:40:02 2023
    On Mon, Mar 20, 2023 at 07:01:22PM +0100, john doe wrote:
    Debians,

    I'm seeing some alarming MSGs (E.G: ' blk_update_request: I/O error, dev
    sda, sector N') in my server's log.
    As it's read-only, I can not install smartmontools to investigate further.

    This server is to be used until a new server is ready, is there anything
    that I can do to keep it running?

    Any other ideas is welcome!

    --
    John Doe


    Run, don't walk, to another computer and order new disks and shut this one down immediately. If the file system has gone read only because of errors, you need to shut it down NOW, maybe, and hope that you can recover data when it boots up.

    Good luck, but it's probably too late.

    Andy Cater

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  • From =?iso-8859-2?Q?Kamil_Jo=F1ca?=@21:1/5 to Andrew M.A. Cater on Mon Mar 20 20:10:01 2023
    "Andrew M.A. Cater" <amacater@einval.com> writes:

    On Mon, Mar 20, 2023 at 07:01:22PM +0100, john doe wrote:
    Debians,

    I'm seeing some alarming MSGs (E.G: ' blk_update_request: I/O error, dev
    sda, sector N') in my server's log.
    As it's read-only, I can not install smartmontools to investigate further. >>
    This server is to be used until a new server is ready, is there anything
    that I can do to keep it running?

    Any other ideas is welcome!

    --
    John Doe


    Run, don't walk, to another computer and order new disks and shut this one down immediately. If the file system has gone read only because of errors, you need to shut it down NOW, maybe, and hope that you can recover data when it boots up.

    Good luck, but it's probably too late.

    +1
    I have some time ago such messages and it WAS too late. (Regardless of
    daily backups ...)

    KJ

    --
    http://stopstopnop.pl/stop_stopnop.pl_o_nas.html

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  • From David Christensen@21:1/5 to john doe on Mon Mar 20 23:00:01 2023
    On 3/20/23 11:01, john doe wrote:
    Debians,

    I'm seeing some alarming MSGs (E.G: ' blk_update_request: I/O error, dev
    sda, sector N') in my server's log.
    As it's read-only, I can not install smartmontools to investigate further.

    This server is to be used until a new server is ready, is there anything
    that I can do to keep it running?

    Any other ideas is welcome!

    --
    John Doe


    I find it very useful to install Debian onto a good quality USB 3.0
    flash drive. I suggest that you do the same. Install the tools that
    you need for administration, backup, restore, trouble-shooting, etc..


    David

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