Thanks Frank,

Will give it a whirl. 

-----Original Message-----
From: Frank Crawford [mailto:[log in to unmask]] 
Sent: Thursday, 13 January 2011 3:31 PM
To: LEES, Cooper
Cc: [log in to unmask]; [log in to unmask]
Subject: Re: NFS Tuning + Benchmarking on Scientific
Linux[SEC=UNCLASSIFIED]

Cooper,
	iozone (http://www.iozone.org/) is an excellent utility to
measure disk
performance.

Regards
Frank

On Thu, 2011-01-13 at 15:22 +1100, LEES, Cooper wrote:
> Hi All,
> 
> I am mounting NFS from a Sun (Oracle) x4540 using the following
options:
> plumper.ansto.gov.au:/cesspool/home        /home   nfs
> defaults,bg,intr,hard,noacl     0 0
> (Have played with noac as well etc.)
> 
> 1)
> Is there better options I should use to obtain better performance?
(e.g.
> noac will but I would the server to commit to disk and flash should
help
> my speed there)
> 
> 2)
> Is there a package (preferably within Scientific Linux Packages - if
not
> easily compilable) to do benchmarks on a mounted NFS filesystem?
> Possibly print out latency and IOPs? I ask as I am about to add a F20e
> flash card to my server and want to see the difference in performance
I
> can get with the Flash card and no flash card.
> 
> Ta,
> ----
> Cooper Ry Lees
> HPC / UNIX Systems Administrator - Information Technology Services
(ITS)
> Australian Nuclear Science and Technology Organisation
> T  +61 2 9717 3853
> F  +61 2 9717 9273
> M  +61 403 739 446
> E  [log in to unmask]
> www.ansto.gov.au <http://www.ansto.gov.au>
> 
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