https://community.hpe.com/t5/storevirtual-storage/lantency/m-p/5776613#M5597 <P>Have not done it.</P><P>&nbsp;</P><P>Already very happy with performance on P4000 clusters - As far as I can tell on an optimised network they operate at close to wire speed anyway. Can't see much improvement occuring from TCP optimizations unless something is wrong in the first place. If it is not broken, why fix it?</P><P>&nbsp;</P><P>(run a medium sized hyper-v cluster / p4000 cluster, management is crap, performance is pretty good, waiting for ver 10, SMI-S providers, until then I would actually say that P4000 is a pretty poor choice management wise, but performance is good as far as iSCSI goes)</P><P>&nbsp;</P><P>Regards.</P><P><BR />David Tocker</P> Sat, 25 Aug 2012 09:27:50 GMT David_Tocker 2012-08-25T09:27:50Z https://community.hpe.com/t5/storevirtual-storage/lantency/m-p/5761123#M5551 Hi, I have seen a few articles regarding setting TcpAckFrequency to 1 on a hyper-v to reduce io lantency. Has anyone done this on a P4500 multi site san and has it made a difference? Thanks in advance Sat, 11 Aug 2012 16:04:50 GMT https://community.hpe.com/t5/storevirtual-storage/lantency/m-p/5761123#M5551 Besty_Boy 2012-08-11T16:04:50Z https://community.hpe.com/t5/storevirtual-storage/lantency/m-p/5776613#M5597 <P>Have not done it.</P><P>&nbsp;</P><P>Already very happy with performance on P4000 clusters - As far as I can tell on an optimised network they operate at close to wire speed anyway. Can't see much improvement occuring from TCP optimizations unless something is wrong in the first place. If it is not broken, why fix it?</P><P>&nbsp;</P><P>(run a medium sized hyper-v cluster / p4000 cluster, management is crap, performance is pretty good, waiting for ver 10, SMI-S providers, until then I would actually say that P4000 is a pretty poor choice management wise, but performance is good as far as iSCSI goes)</P><P>&nbsp;</P><P>Regards.</P><P><BR />David Tocker</P> Sat, 25 Aug 2012 09:27:50 GMT https://community.hpe.com/t5/storevirtual-storage/lantency/m-p/5776613#M5597 David_Tocker 2012-08-25T09:27:50Z