> As you can see from the figures they are amazingly
> good. So ZFS is not the bottleneck. The Samba values
> of Ubuntu where a little bit better compared to
> FreeBSB but absolutely unstable.
> 
> So what I see is ZFS is performing well 

Yep, I agree.


> and Samba or CIFS is performing well also 

Why?  Did you do some measurements to prove this?

Are you saying this because "Vista -- FreeBSD (Samba / UFS)"
was able to transfer 30 - 40 Mb/sec?


> but the combination ZFS
> + Samba/CIFS really takes down the performance on my
> board. Any hints?

Did you do some of the network tests?  Is the Solaris
driver for the "Realtek 8111DL Gigabit Ethernet" hardware
able to send or receive close to 100Mbyte/sec over ethernet?
(Note that it is best to use a special tcp benchmark - e.g. ttcp -
that doesn't use the hdd as the source or sink of the data)


I think we first have to make sure that the individual 
components (disk, net, zfs, cifs/samba) all perform as
expected before we can have a look at the bigger picture
with all of the components combined...
-- 
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