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Re: software RAID: ataraid(4) vs raidframe(4) ?

On Thu, Sep 04, 2008 at 01:35:05PM +0200, Juan Romero Pardines wrote:
> 2008/8/27 Geert Hendrickx <>:
> > Thanks Matthias.  Juan, could you give a status update on this?  I could
> > test, but my new PC will arrive today and I don't want to dump/restore it
> > too often after I've initially installed it. :-)
> >
> > A few other remaining questions:
> >
> > - how does ataraid(4) compare to raidframe(4) wrt. unclean shutdowns?  Does
> >  it need to do a complete parity rebuild, too?
> It doesn't need a parity rebuild. The ataraid(4) driver copies the
> same data in the
> components if RAID 1, and if one component fails they will be unsync;
> in that case
> all is handled by the BIOS RAID management.

And how do you make sure they're in sync in case of an unclean shutdown ?
Do you have to let the BIOS run the parity rebuild until before booting ?

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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