raidz configuration

[Pawel Jakub Dawidek]

On Sun, Nov 29, 2009 at 06:20:26PM +0100, Olivier Smedts wrote:
> 2009/11/29 Dimitry Andric <dimitry at andric.com>:
> > On 2009-11-28 23:22, Wes Morgan wrote:
> >> Simple question:
> >>
> >> 8 devices in a raidz2
> >> or
> >> 4 devices in a raidz x 2
> >
> > With the first configuration, any two drives can fail, and all data is
> > still preserved.
> >
> > With the second configuration, if two drives fail within the same RAID
> > set, you are screwed.
> 
> A raidz on top of four zfs mirrors would be better (ie raid1+0 vs raid 0+1).

This can't be configure. And raidz is equivalent of RAID5, not RAID0.

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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