----- "Roy Sigurd Karlsbakk" <r...@karlsbakk.net> skrev:

> Hi all
> 
> I have a test system with snv134 and 8x2TB drives in RAIDz2 and
> currently no Zil or L2ARC. I noticed the I/O speed to NFS shares on
> the testpool drops to something hardly usable while scrubbing the
> pool.
> 
> How can I address this? Will adding Zil or L2ARC help? Is it possible
> to tune down scrub's priority somehow?

Further testing shows NFS speeds are acceptable after adding Zil and L2ARC (my 
test system has two SSDs for the root, so I detached on of them and split it 
into a 4GB slice for Zil and the rest for L2ARC).

Best regards

roy
--
Roy Sigurd Karlsbakk
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r...@karlsbakk.net
http://blogg.karlsbakk.net/
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