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List:       linux-lvm
Subject:    Re: [linux-lvm] lvm RAID and segtypes... difference to MD?
From:       Zdenek Kabelac <zkabelac () redhat ! com>
Date:       2013-07-19 9:35:18
Message-ID: 51E90856.7040308 () redhat ! com
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Dne 18.7.2013 23:36, Christoph Anton Mitterer napsal(a):
> Hi.
> 
> Thanks for the answers...
> 
> 
> On Thu, 2013-07-18 at 21:30 +0200, Zdenek Kabelac wrote:
> > https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Logical_Volume_Manager_Administration/raid_volumes.html
> > 
> But that's only about the RAIDs... not about the other segtypes :(

How about going to:

https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Logical_Volume_Manager_Administration/



> And even there it doesn't provide that much detail information... like
> how much it reuses from MD (same superblocks?) and e.g. whether one can
> use such devices also with mdadm (respectively vice versa.


I guess it's obvious it's using different metadata format - since it's based 
on PV/VG/LV.

Internally dmraid shares same kernel code with mdraid.
(unlike mirror which is internal to dm)

There is no detailed doc about everything :) - you can read the open-source.

Zdenek

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