Re: Proposed enhancements to MD

Wakko Warner
2004-01-13T22:32:19Z

> > Adaptec has been looking at the MD driver for a foundation for their
> > Open-Source software RAID stack.
>
> Hi,
>
> Is there a (good) reason you didn't use Device Mapper for this? It
> really sounds like Device Mapper is the way to go to parse and use
> raid-like formats to the kernel, since it's designed to be independent
> of on disk formats, unlike MD.

As I've understood it, the configuration for DM is userspace and the kernel
can't do any auto detection. This would be a "put off" for me to use as a
root filesystem. Configurations like this (and lvm too last I looked at it)
require an initrd or some other way of setting up the device. Unfortunately
this means that there's configs in 2 locations (one not easily available, if
using initrd. easily != mounting via loop!)

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