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Groups > linux.debian.user > #230119

Re: mdadm usage

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Thomas A. Anderson wrote: 
> Which bring me to my final question, just for closure.
> 
> If hardware raid (like if I bought a controller), would it be any
> different, if I removed the drives and just put on one another machine
> -- would I be able to see the data on it like a normal drive? Or would I
> run into the same issue??

Much worse.

If you had done this correctly, you can take a set of drives
from a working mdadm system and bring them to another computer
and use mdadm to import them and use them. Depending on which
options you chose and which drives you brought over, you could
potentially do this with fewer drives than "all".

(The same is true of ZFS and BTRFS.)

On every hardware RAID system that I know of, you need the same
hardware RAID on the receiving system -- sometimes just a
compatible card, sometimes precisely the same card.

-dsr-

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Thread

mdadm usage "Thomas A. Anderson" <thomas.anderson@little-beak.com> - 2020-12-29 08:10 +0100
  Re: mdadm usage Reco <recoverym4n@enotuniq.net> - 2020-12-29 08:30 +0100
    Re: mdadm usage deloptes <deloptes@gmail.com> - 2020-12-29 09:40 +0100
  Re: mdadm usage Felix Miata <mrmazda@earthlink.net> - 2020-12-29 08:50 +0100
    Re: mdadm usage basti <mailinglist@unix-solution.de> - 2020-12-29 09:40 +0100
      Re: mdadm usage "Thomas A. Anderson" <thomas.anderson@little-beak.com> - 2020-12-29 21:40 +0100
        Re: mdadm usage Linux-Fan <Ma_Sys.ma@web.de> - 2020-12-30 00:00 +0100
        Re: mdadm usage deloptes <deloptes@gmail.com> - 2020-12-30 02:00 +0100
          Re: mdadm usage Michael Stone <mstone@debian.org> - 2020-12-30 02:30 +0100
            Re: mdadm usage deloptes <deloptes@gmail.com> - 2020-12-30 09:20 +0100
            Re: mdadm usage Jesper Dybdal <jd-debian-user@dybdal.dk> - 2020-12-30 14:40 +0100
              Re: mdadm usage Andy Smith <andy@strugglers.net> - 2020-12-30 15:00 +0100
                Re: mdadm usage Jesper Dybdal <jd-debian-user@dybdal.dk> - 2021-01-02 14:40 +0100
              mdadm usage Nicholas Geovanis <nickgeovanis@gmail.com> - 2020-12-30 15:10 +0100
                Re: mdadm usage Nicholas Geovanis <nickgeovanis@gmail.com> - 2020-12-30 15:10 +0100
                Re: mdadm usage deloptes <deloptes@gmail.com> - 2020-12-30 21:50 +0100
                Re: mdadm usage Michael Stone <mstone@debian.org> - 2020-12-30 22:40 +0100
                Re: mdadm usage deloptes <deloptes@gmail.com> - 2020-12-30 23:20 +0100
                Re: mdadm usage Andy Smith <andy@strugglers.net> - 2020-12-31 00:30 +0100
                Re: mdadm usage rhkramer@gmail.com - 2020-12-31 13:30 +0100
                Re: mdadm usage Michael Stone <mstone@debian.org> - 2020-12-31 15:20 +0100
                Re: mdadm usage Andy Smith <andy@strugglers.net> - 2020-12-31 15:30 +0100
                Re: mdadm usage Reco <recoverym4n@enotuniq.net> - 2020-12-31 15:50 +0100
                Re: mdadm usage Andy Smith <andy@strugglers.net> - 2020-12-31 16:10 +0100
                Re: mdadm usage Reco <recoverym4n@enotuniq.net> - 2020-12-31 16:20 +0100
                Re: mdadm usage Andy Smith <andy@strugglers.net> - 2020-12-31 16:40 +0100
                Re: mdadm usage deloptes <deloptes@gmail.com> - 2021-01-01 23:10 +0100
                Re: mdadm usage Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-02 09:40 +0100
                Re: mdadm usage deloptes <deloptes@gmail.com> - 2021-01-02 10:10 +0100
                Re: mdadm usage Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-02 11:30 +0100
                Re: mdadm usage Linux-Fan <Ma_Sys.ma@web.de> - 2021-01-02 14:50 +0100
                Re: mdadm usage deloptes <deloptes@gmail.com> - 2021-01-02 16:40 +0100
                Re: mdadm usage Linux-Fan <Ma_Sys.ma@web.de> - 2021-01-02 18:10 +0100
                Re: mdadm usage The Wanderer <wanderer@fastmail.fm> - 2021-01-02 10:40 +0100
                Re: mdadm usage Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-02 12:00 +0100
                Re: mdadm usage The Wanderer <wanderer@fastmail.fm> - 2021-01-02 12:30 +0100
                Re: mdadm usage Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-02 12:50 +0100
                Re: mdadm usage Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-02 13:10 +0100
                Re: mdadm usage The Wanderer <wanderer@fastmail.fm> - 2021-01-02 14:20 +0100
                Re: mdadm usage The Wanderer <wanderer@fastmail.fm> - 2021-01-02 14:10 +0100
                Re: mdadm usage deloptes <deloptes@gmail.com> - 2021-01-02 12:50 +0100
          Re: mdadm usage "Thomas A. Anderson" <thomas.anderson@little-beak.com> - 2020-12-30 11:50 +0100
            Re: mdadm usage "Alexander V. Makartsev" <avbetev@gmail.com> - 2020-12-30 13:30 +0100
            Re: mdadm usage Dan Ritter <dsr@randomstring.org> - 2020-12-30 13:30 +0100
            Re: mdadm usage Andy Smith <andy@strugglers.net> - 2020-12-30 15:00 +0100
            Re: mdadm usage deloptes <deloptes@gmail.com> - 2020-12-30 22:10 +0100
              Re: mdadm usage Nicholas Geovanis <nickgeovanis@gmail.com> - 2020-12-31 00:00 +0100
        Re: mdadm usage Andrei POPESCU <andreimpopescu@gmail.com> - 2020-12-30 09:10 +0100
      Re: mdadm usage Dan Ritter <dsr@randomstring.org> - 2020-12-30 04:00 +0100
  Re: mdadm usage Andy Smith <andy@strugglers.net> - 2020-12-29 14:20 +0100
    Re: mdadm usage mick crane <mick.crane@gmail.com> - 2020-12-29 16:40 +0100
      Re: mdadm usage "Alexander V. Makartsev" <avbetev@gmail.com> - 2020-12-29 20:40 +0100
      Re: mdadm usage Andy Smith <andy@strugglers.net> - 2020-12-30 14:40 +0100
        Re: mdadm usage The Wanderer <wanderer@fastmail.fm> - 2020-12-30 14:50 +0100
        Re: mdadm usage mick crane <mick.crane@gmail.com> - 2020-12-30 18:00 +0100
          Re: mdadm usage Andrei POPESCU <andreimpopescu@gmail.com> - 2020-12-30 19:40 +0100

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