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Re: SMART Uncorrectable_Error_Cnt rising - should I be worried?

From Dan Ritter <dsr@randomstring.org>
Newsgroups linux.debian.user
Subject Re: SMART Uncorrectable_Error_Cnt rising - should I be worried?
Date 2024-01-10 18:40 +0100
Message-ID <HUKIy-2aF8-7@gated-at.bofh.it> (permalink)
References <HUkbn-1U36-5@gated-at.bofh.it> <HUsVj-1ZNF-11@gated-at.bofh.it> <HUDe1-265T-7@gated-at.bofh.it> <HUIQq-29vn-7@gated-at.bofh.it> <HUKfv-2av3-1@gated-at.bofh.it>
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Curt wrote: 
> On 2024-01-10, David Christensen <dpchrist@holgerdanske.com> wrote:
> >
> >
> > Given the OP's situation -- 8 consumer SSD's, same make and model, 
> > possibly from a defective manufacturing batch, all purchased at the same 
> > time, all deployed in the same RAID-6, all run 2.5 years 24x7, and all 
> > suddenly showing lots of SMART warnings -- I would not have confidence 
> > in that RAID.
> 
> It's curious, but I just heard something on French TV from a journalist
> that's relevant to this. She said she'd covered the aeronautics field in
> the past and mentioned the *principe de dissemblance* (dissimilarity
> principle). Critical redundant parts on aircraft, she claimed, would be
> sourced from different manufacturers in order to obviate the possibility
> of redundant failures you've raised here.

I don't know whether that's true in aeronautics, but at the home
and small business scale, that's always something I've
practiced.

At the large scale, server assemblers don't want to mix parts
very often (you can get some of them to do it), so you usually
need your servers as a whole to be the unit of redundancy, not
disks in an array.

-dsr-

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Thread

SMART Uncorrectable_Error_Cnt rising - should I be worried? The Wanderer <wanderer@fastmail.fm> - 2024-01-09 14:20 +0100
  Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Dan Ritter <dsr@randomstring.org> - 2024-01-09 16:00 +0100
    Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? The Wanderer <wanderer@fastmail.fm> - 2024-01-09 16:30 +0100
      Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-09 19:50 +0100
  Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Curt <curty@free.fr> - 2024-01-09 17:20 +0100
    Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? The Wanderer <wanderer@fastmail.fm> - 2024-01-09 19:20 +0100
  Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-09 17:30 +0100
    Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? The Wanderer <wanderer@fastmail.fm> - 2024-01-09 19:30 +0100
      Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-09 20:10 +0100
        Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? The Wanderer <wanderer@fastmail.fm> - 2024-01-09 20:30 +0100
          Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? The Wanderer <wanderer@fastmail.fm> - 2024-02-15 04:00 +0100
            Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? songbird <songbird@anthive.com> - 2024-02-15 07:20 +0100
              Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? The Wanderer <wanderer@fastmail.fm> - 2024-02-15 16:50 +0100
            Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? David Christensen <dpchrist@holgerdanske.com> - 2024-02-15 09:20 +0100
              Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? The Wanderer <wanderer@fastmail.fm> - 2024-02-15 16:50 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-02-15 18:40 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? David Christensen <dpchrist@holgerdanske.com> - 2024-02-16 11:00 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? "Roy J. Tellason, Sr." <roy@rtellason.com> - 2024-02-16 20:00 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? David Christensen <dpchrist@holgerdanske.com> - 2024-02-16 21:00 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Gremlin <scott-andrews@columbus.rr.com> - 2024-02-16 22:50 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? "Roy J. Tellason, Sr." <roy@rtellason.com> - 2024-02-17 19:50 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? gene heskett <gheskett@shentel.net> - 2024-02-18 02:50 +0100
            Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? debian-user@howorth.org.uk - 2024-02-15 13:20 +0100
              Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? The Wanderer <wanderer@fastmail.fm> - 2024-02-15 16:10 +0100
  Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? David Christensen <dpchrist@holgerdanske.com> - 2024-01-09 23:40 +0100
    Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? David Christensen <dpchrist@holgerdanske.com> - 2024-01-09 23:50 +0100
    Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-10 10:40 +0100
      Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? David Christensen <dpchrist@holgerdanske.com> - 2024-01-10 16:40 +0100
        Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Curt <curty@free.fr> - 2024-01-10 18:10 +0100
          Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-10 18:40 +0100
            Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? David Christensen <dpchrist@holgerdanske.com> - 2024-01-11 03:30 +0100
          Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Dan Ritter <dsr@randomstring.org> - 2024-01-10 18:40 +0100
          Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? David Christensen <dpchrist@holgerdanske.com> - 2024-01-11 03:20 +0100
            Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Dan Ritter <dsr@randomstring.org> - 2024-01-11 15:10 +0100
              Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? David Christensen <dpchrist@holgerdanske.com> - 2024-01-11 16:10 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Dan Ritter <dsr@randomstring.org> - 2024-01-11 19:30 +0100
              Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Stefan Monnier <monnier@iro.umontreal.ca> - 2024-01-11 21:30 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Michael Stone <mstone@debian.org> - 2024-01-12 00:00 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? Dan Ritter <dsr@randomstring.org> - 2024-01-12 12:20 +0100
                Re: SMART Uncorrectable_Error_Cnt rising - should I be worried? The Wanderer <wanderer@fastmail.fm> - 2024-02-15 16:50 +0100

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