> >
> > raidctl -a /dev/sd0e raid0
> > raidctl -F component1 raid0
> >
> > and it started copying to second disk. after everything done i rebooted OS
> > and... it started to recompute parity once again.
>
> Which version of NetBSD?

1.5.1

> > after it i rebooted again (cleanly!!) and again it recomputes parity after
> > start.
> >
> > what's wrong?!
>
> I need to know what version of NetBSD before I can speculate...  do you have

/ on raid0a and swap on raid0b

i've done raidctl -A root raid0