Ok on the answers to all my questions. There's nothing that really stands out as being obviously wrong. Just out of interest, what build of OpenSolaris are you using?
One thing you could try on the Ethernet capture file, is to set the WireShark 'Time' column like this: "View > Time Display Format > Seconds Since Previous Displayed Packet" Then look down the time column for any unusual high time delays between packets. Any unusually high delays during a data transfer phase, may indicate a problem. Another thing you could try is measuring network performance with a utility called 'iperf'. It's not part of Solaris, so you would need to compile it. Download the source from here: http://sourceforge.net/projects/iperf/ I've just compiled the latest version 2.0.4 on snv_93 without problem, using the normal "configure, make, make install". If you want to run 'iperf' on a windows box, you can download a '.exe' of an older version here: http://www.noc.ucf.edu/Tools/Iperf/ You can find tutorials on how to use it at these links: http://www.openmaniak.com/iperf.php http://www.enterprisenetworkingplanet.com/netos/article.php/3657236 I've just tried 'iperf' between my OpenSolaris pc & an old Windows pc, both with low-cost realtek gigabit cards and linked via a low-cost NetGear switch. I measured a TCP bandwidth of 196 Mbit/sec in one direction and 145 Mbit/sec in the opposite direction. (On OpenSolaris, Iperf was not able to increase the default TCP window size of 48K bytes.) Regards Nigel Smith -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
