Hi! i´m using DSS V6 Lite (6.0up50.8401.4786 64bit) with VMWare esxi 4.0 (171294).
I have made this guide (documents.open-e.com/Open-_DSS_V6_MPIO_with_ESX4i_4.1.pdf) step by step but i can´t get a good iscsi speed.
I have saw this video too and I followed it step by step: http://www.vimeo.com/moogaloop.swf?clip_id=18113062
I have configured jumbo frames to 7000 and 9000.
I have used a dedicated switch with jumbo frames enabled.
Now I ´m using crossover patchs but i´m still getting the same performance.
Also i have configure this: (based on this post: http://forum.open-e.com/showthread.p...ght=slow+iscsi)
On DSS V6 Lite:
Here are the settings I made:
MaxRecvDataSegmentLength=65536
MaxBurstLength=1047552 (the recommended 16776192 knocked out my connection)
MaxXmitDataSegmentLength=65536
FirstBurstLength=523776
MaxOutstandingR2T=8
InitialR2T=No
ImmediateData=Yes
but i cannot improve the speed.
I don´t know what i´m doing wrong.
In DSS V6 Lite i have 2 dedicated intel PRO 1000 Gt (PCI) nics.
H/w raid 3ware 9650SE in RAID 10 configuration.
In esxi the same configuration, 2 dedicated intel PRO 1000 Gt (PCI) nics.
The previous tests were made with the target configured in File I/O mode with WB enabled.
I ran test with WB disable, also in the controller WB was disabled but the performance was too slow.
Recently i have configured the DSS V6 Lite with Block I/O with WB enabled. Now i have a better performance but it still slow.
Esxi says that the nics are transmitting about 30.000 Kbps each.
What other test I can do to figure out what is the problem?
Hmm your using a desktop adapter for your MPIO I would carefully check your specs on these adapters. Not saying there is an issue here, just I wouldn't use desktop cards for anything intensive and iSCSI MPIO, the rest of your esxi settings look right.
What is your switch equipment? Have you check packet through put on your switches etc