Re: Linux mdadm superblock question.

[Asdo]

H. Peter Anvin wrote:
> On 02/13/2010 12:07 PM, Justin Piszcz wrote:
>   
> 0.90 has a very bad problem, which is that it is hard to distinguish
> between a RAID partition at the end of volume and a full RAID device.
> This is because 0.90 doesn't actually tell you the start of the device.
>
> Then, of course, there are a lot of limitations on size, number of
> devices, and so on in 0.90.
>
> 	-hpa
>   
I don't understand...
In a system we have, the root filesystem on a raid-6 which is on second 
(and last) partitions of many disks.
It always assembled correctly, it never tried to assemble the whole device.
(on the first partition there is a raid1 with boot)
So what's the problem exactly with not marking the beginning?
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