2009/8/9 John . <comp.j...@googlemail.com>:
> Hello list
>
> I followed instructions for ZFS on
> http://wiki.freebsd.org/ZFSQuickStartGuide, substituting ad6 and ad10
> (two new SATA3 1TB disks) for da0 da1 and da2 in the instructions. I
> was surprised to see only 993GB in /tank/. Is this expected, or is it
> user error? Also, these disks are completely unformatted. I expected
> to do a newfs or something similar, and for it to take a bit of time!
>
> This is on a running 7.2-STABLE amd64 system. It is only these two
> disks that I want as ZFS, the rest are UFS2
>
> cheers
> --
> John
>

I think I might have answered my own questionj - seems we need 3 or
more disks for raidz - (n-p)*x gives 1TB usable. reliability isn't
that important, and they are new disks. I suppose ccd would be better
in this scenario?

-- 
John
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