If you want a simple, highly tunable IO generation tool, check out NetApp's own SIO in the NOW toolchest: http://support.netapp.com/eservice/toolchest?toolid=418 http://www.netapp.com/go/techontap/tot-march2006/0306tot_monthlytoolSIO.html
If you're suspicious of using a vendor provided tool, the source is included in the download. ;-)
Share and enjoy!
Peter
-----Original Message----- From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Dan Burkland Sent: Saturday, May 19, 2012 10:48 AM To: toasters@teaparty.net Subject: Poor NFS 10GbE performance on NetApp 6080s
Hi all,
My company just bought some Intel x520 10GbE cards which I recently installed into our Oracle EBS database servers (IBM 3850 X5s running RHEL 5.8). As the "linux guy" I have been tasked with getting these servers to communicate with our NetApp 6080s via NFS over the new 10GbE links. I have got everything working however ever after tuning the RHEL kernel I am only getting 160MB/s writes using the "dd if=/dev/zero of=/mnt/testfile bs=1024 count=5242880" command. For you folks that run 10GbE to your toasters, what write speeds are you seeing from your 10GbE connected servers? Did you have to do any tuning in order to get the best results possible? If so what did you change?
Thanks!
Dan
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