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Re: mdadm - two questions

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On Tue, Nov 22, 2016 at 06:10:53PM +0100, Kamil Jońca wrote:
> (I do not know it is proper place to ask these questions.)
> 1.
> man mdadm has some info about CONTAINER-s.
> 
> I think, that I understand how to use it, but I cannot imagine use case
> of containers.
> Can someone explain whent it is desirable to use containers, especially
> DDF instead of free mdX devices?

Only when you have bizarre Windows compatibility needs and
appropriate hardware.

> 2. there is md0 (raid1) with two disk in it. It is PV for lvm.
> I want to extend space by adding  another two disks. Is it possible somehow
> extent md0? Or the only way is to create second md device, and assign it
> to volume group?

Both are available:
https://raid.wiki.kernel.org/index.php/Growing

but if you're doing this frequently, you
should consider ZFS instead of mdadm and lvm.

-dsr-

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Thread

mdadm - two questions   kjonca@poczta.onet.pl (Kamil Jońca) - 2016-11-22 18:40 +0100
  Re: mdadm - two questions Dan Ritter <dsr@randomstring.org> - 2016-11-22 19:10 +0100
    Re: mdadm - two questions kjonca@poczta.onet.pl (Kamil Jońca) - 2016-11-22 21:40 +0100
      Re: mdadm - two questions Dan Ritter <dsr@randomstring.org> - 2016-11-22 22:00 +0100
        Re: mdadm - two questions kjonca@poczta.onet.pl (Kamil Jońca) - 2016-11-23 06:40 +0100
      Re: mdadm - two questions Jens Sauer <jsauer65@gmail.com> - 2016-11-22 22:10 +0100
  Re: mdadm - two questions Frédéric Marchal <frederic.marchal@wowtechnology.com> - 2016-11-23 14:10 +0100
  Re: mdadm - two questions kjonca@poczta.onet.pl (Kamil Jońca) - 2016-11-29 01:50 +0100
    Re: mdadm - two questions Andy Smith <andy@strugglers.net> - 2016-11-30 06:10 +0100
      Re: mdadm - two questions   Rick Thomas <rbthomas@pobox.com> - 2016-11-30 10:50 +0100
        Re: mdadm - two questions kjonca@poczta.onet.pl (Kamil Jońca) - 2016-11-30 13:10 +0100
          Re: mdadm - two questions   Rick Thomas <rbthomas@pobox.com> - 2016-11-30 14:20 +0100
      Re: mdadm - two questions kjonca@poczta.onet.pl (Kamil Jońca) - 2016-11-30 13:00 +0100
  mdadm - Progress mails of checkarray now missing Hans Kraus <hans@hanswkraus.com> - 2016-12-10 21:10 +0100

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