¿Why my iscsi speed is like limited?

[Gr-R]

try upgrading to latest V6 b5087, and switch to SCST1.0

[m.casco]

Gr-R:


I´m already using DSS V6: 6.0up55.8101.5087 64bit and SCST1.0.

The strange thing is that i can move a 41 Gb archive from the esxi to the DSS V6 in less than 10 minutes but, in a VM, IOmeter shows 25 Mb maximun.

I don´t know if is the processor (athlonII x2 245, 2.9 ghz) is my bottleneck:



Thanks!!!

[AdStar]

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

Cheers
Ad

[m.casco]

AdStar:

Now i am using crossover cable between the Open-E and the esxi.
But if u want to know this is my switch:
http://www.intellinet-network.com/en...b-smart-switch

I will try to upgrade the processor and see if the performance improves.

Thanks!

[m.casco]

OK.
I have upgraded to a Quad Core CPU (intel Q8300) with 4 GB of ram and a mobo with intel chipset (Don´t remember wich one).

The performance is even worst!!!

I only have a maximun of 15.000 Kbps on each Nic and a total usage of 28647 kbps (according the esxi graphics)

I give up with this. Tomorrow i think that i will go back to Openfiler.

Thank you all!!!

[Gr-R]

On DSS side:

1. From the console, press CTRL+ALT+W,
2. Select Tuning options -> iSCSI daemon options -> Target options,
3. Select the target in question,
4. change the MaxRecvDataSegmentLength and MaxXmitDataSegmentLength values to the
maximal required data size (check w/ the initiator to match).

maxRecvDataSegmentLen=262144
Maxxmitdatasegment=262144
maxoutstandingr2t=8
InitialR2T=No
ImmediateData=Yes

Set allow and deny IP's for each target.
Enable WB on targets
On VMWare side, set static targets, not discovery method.

[m.casco]

Gr-R:

I have done what you askme. The speed has improove but i don´t know if the results are good or it can be greater.

Here are some pics:
Speed on esxi:

HD Tach on a VM:

Configuration on iscsi initiator: (static targets configured)

Configuration on iscsi Nics on esxi:


If you see something wrong please telme.
Thanks for your help