I'm currently experiencing exactly the same problem and it's been driving me nuts. Tried open soalris and am currently running the latest version of SXCE both with exactly the same results.
This issue occurs with both CIFS which shows the speed degrade and ISCSI which just starts off at the lowest speed but exhibits the same peaks and troughs I have 4x500GB drives in RAIDz1 config on an AMD 780G mobo. speed tests using DD have shown read rates of ~140MB/s and write rates of `120MB/s (humourously slightly faster than one of my friends arrays on linux and intel hardware) Currently the transfer will sit at about 18% gige network utilisation for 10 seconds then dip to 0 and come straight back up to 18% this happens at regular predictable intervals, there is no randomness. I've tried two different switches, one a consumer grade switch from linksys and one a low end distribution switch from 3com both exhibit exactly the same behaviour. The only computer accessing the solaris box is w windows vista 64 sp1 machine. Currently I'm guessing that the transfer issues have somethign to do with the onboard realtek network card in the solaris box. Possibly a driver issue? I've got a dual port intel server nic on order to replace it and test with. -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
