hi May be this is releated to the IPMP that is required by Sun cluster When U run iperf -s server-IP did U use the Logicalhost IP address of the server?
Jacob wrote: >Hi List, >I've heard many good things about this list and the opensolaris community,I >sure hope someone here can help me out here. > >One of our systems is suffering for a very poor network throughput, which >appears to be affected by Sun Cluster. > >The system consists of 3 T2000 machines in Sun Cluster(3.2) running on Solaris >10 u4. >The network throughput in non cluster mode is about 800mbit on a single e1000g >interface. > The Network [b]throughput falls by about 50%[/b] when booting the machine(s) > in cluster mode. >To isolate possible LAN problems, I've connected two machines using cross >cable - same result. > >The problem was reproduced by installing a brand new T2000 machine with >similar configuration as a single node cluster. > >All throughput measurements were done using iperf. > >Have anyone encountered something similar? >Does anyone have experience with T2000 machines in Sun Cluster with regard to >Network performance? > >Thanks in advance, >-- > >This message posted from opensolaris.org > >_______________________________________________ >ha-clusters-discuss mailing list >ha-clusters-discuss at opensolaris.org >http://mail.opensolaris.org/mailman/listinfo/ha-clusters-discuss > > -- Hung-Sheng Tsao, Ph.D. (LaoTsao) Sr. System Engineer US, GEH East Data Center Ambassador 400 Atrium Dr, 1ST FLOOR P/F:1877 319 0460 (x67079) Somerset, NJ 08873 C: 973 495 0840 http://blogs.sun.com/hstsao/ E:Hung-Sheng.Tsao at sun.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ NOTICE: This email message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~