Re: Future of md multipath

[martin f krafft]

also sprach Neil Brown <neilb@xxxxxxx> [2009.03.05.0349 +0100]:
> I'm in favour of deprecating it.  Whenever I hear of people using it I
> suggest dm-multipath, but there could people I don't here about.
> I think the upcoming mdadm-3.0 will need a compile-time option to
> enable multipath, so people will only get it if they really really
> want it.

How do you propose a distro to deal with this? Keep it enabled for
a certain time (with a deprecation warning?) and then just to close
the doors on users who still need it?

How long will you support it after deprecation?

I understand that dm-multipath is more favourable, but unless
there's a riskless way to convert mdadm multipath into dm-multipath
on old systems, I don't think we have the option of deprecating it,
unless deprecation lasts for several years.

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