Re: How does md(adm) work with fake-raid ?

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On 07/19/2013 01:35 AM, Dmitrijs Ledkovs wrote:

> My experience with these fakeraid arrays is very limitted, and I'd
> want to enquire of proper migration strategies from dmraid to mdadm.
> Whilst looking at the udev rules, at the moment, i have disable
> IMSM/DDF from assembly in mdadm udev rules, because dmraid has a nice
> property of "activating anything it finds".
> I suppose having both mdadm & dmraid racing to activate those drives
> wouldn't be nice.

It can be done in udev. Have a look at the udev rules in CentOS6, for
example; they do it for IMSM and it should be possible for DDF as well.
You can use kernel command line parameters ("nodmraid") to define what
RAID solution you prefer.

Martin
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