Re: setting up raid5

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, May 31, 2010 at 10:06:39AM -0400, Steven Bellovin wrote:
> >> 
> >> I'm not 100% sure, but I think you're limited to 128 sectors per
> >> stripe unit (64kB or MAXPHYS) here.  Maybe try the "32 1 1 5" as
> >> per the example first, and bump higher when the rest is working.
> > 
> > Yes, this is likely the problem. raidframe will schedule a transfer
> > larger than MAXPHYS, and the underlying driver will bail out.
> 
> Thanks, I'll try that, though it leaves unanswered why the first two
> drives had no problem -- I was even able to create a file system on
> them.

I can immagine it blows up when trying to write the first full
parity stripe. Once the drive is failed it doens't try to do it again with
other drives.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--