On 20/01/2006 11:32 a.m., Neil Brown wrote:
On Thursday January 19, psusi@xxxxxxxxxx wrote:
I'm currently of the opinion that dm needs a raid5 and raid6 module
added, then the user land lvm tools fixed to use them, and then you
could use dm instead of md. The benefit being that dm pushes things
like volume autodetection and management out of the kernel to user space
where it belongs. But that's just my opinion...
The in-kernel autodetection in md is purely legacy support as far as I
am concerned. md does volume detection in user space via 'mdadm'.
Hrm. <puzzled look> How would I then start my md0 raid-1 array that is
mounted as the root partition / if I'm not doing this when the kernel is
starting up? Because without it I've got no userspace to actually execute.
Some of the other arrays with things like /var and /home could obviously be
easily assembled soon after the kernel hands over control to userspace before
the filesystem points are mounted, but for the root I am not quite sure how it
could work...
reuben
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