Re: raidctl -B syntax

[Edgar Fuß <ef%math.uni-bonn.de@localhost>]

GO> The 'dev' is the RAID device.... 
Yes, evidently (but not after midnight).

GO> it actually blocks IO to the RAID set while the copyback is happening.
Yes, looks like it. Logging out from the root console blocked, as did "ps" 
on both another console and SSH login.

EF> I suppose that after the copyback, I'll have A and B "optimal" and C
EF> "spare", right?
GO> I believe that is correct...
It actually is (the copyback is done).