Re: mdadm - two questions
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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