Raidframe again (label queries)

[der Mouse <mouse%Rodents-Montreal.ORG@localhost>]

Is there any part of raidframe that will answer the question "given
this disk device, is there a raidframe component label on it, and, if
so, what does it say?".  The manpages I've found don't indicate any
such thing, but I certainly could have missed something.

Or should I be asking on tech-userlevel, because it's a userlevel thing
rather than a kernel thing?  Seems to me it'd be better to have at
least part of that in-kernel, so as to keep all the component label
reading code together.

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