On Sat, Feb 27, 2010 at 10:40 AM, Dick Hoogendijk <d...@nagual.nl> wrote:

> I want zfs on a single drive so I use copies=2 for -some- extra safety. But
> I wonder if dedup=on could mean something in this case too? That way the
> same blocks would never be written more than twice. Or would that harm the
> reliability of the drive and should I just use copies=2?
>

ZFS will honor copies=2 and keep two physical copies, even with
deduplication enabled.

-- 
Giovanni Tirloni
sysdroid.com
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