Re: [dm-devel] [PATCH v3 0/8] dm-raid (raid456) target

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On 1/6/2011 5:46 AM, NeilBrown wrote:
> 3:	<#raid_devs> <meta_dev1> <dev1> .. <meta_devN> <devN>

Let me get this straight.  You specify a separate device to hold the
metadata and write intent bitmap for each data device?  So for a 3 disk
raid 5, lvm will need to create two logical volumes on each of the 3
physical volumes, one of which will only be a single physical extent,
and will hold the raid metadata and write intent bitmap?

Why not just store the metadata on the main device like mdadm does today?
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