¿Why my iscsi speed is like limited?

[m.casco]

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

On ESXi 4:
iscovery.sendtargets.iscsi.MaxRecvDataSegmentLeng ht = 65536
node.session.iscsi.FirstBurstLength = 523776
node.session.iscsi.MaxBurstLength = 1047552
node.conn[0].iscsi.MaxRecvDataSegmentLength = 65536
node.session.iscsi.InitialR2T = No
node.session.iscsi.ImmedateData = Yes
node.conn[0].tcp.window_size = 65536

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.

IOmeter shows a maximun of 25 Mb

here are some pics:






Sorry for my english, thank you!!!

[m.casco]

Two more pics:




Thanks!

[AdStar]

From the console whats your output for the following

esxcfg-vswitch -l
esxcfg-vmknic -l
esxcfg-nics -l
esxcli swiscsi nic list -d vmhba32

Cheers
Adam

[m.casco]

Thanks for you help AdStar

Here are the commands

~ # esxcfg-vswitch -l
Switch Name Num Ports Used Ports Configured Ports MTU Uplinks
vSwitch0 64 10 64 1500 vmnic1,vmnic0

PortGroup Name VLAN ID Used Ports Uplinks
VM Network 0 6 vmnic0,vmnic1
Management Network 0 1 vmnic0,vmnic1

Switch Name Num Ports Used Ports Configured Ports MTU Uplinks
vSwitch1 64 3 64 9000 vmnic2

PortGroup Name VLAN ID Used Ports Uplinks
MPIO-1 0 1 vmnic2

Switch Name Num Ports Used Ports Configured Ports MTU Uplinks
vSwitch2 64 3 64 9000 vmnic3

PortGroup Name VLAN ID Used Ports Uplinks
MPIO-2 0 1 vmnic3

~ # esxcfg-vmknic -l
Interface Port Group/DVPort IP Family IP Address Netmask Broadcast MAC Address MTU TSO MSS Enabled Type
vmk0 Management Network IPv4 192.168.0.60 255.255.255.0 192.168.0.255 00:25:90:15:d3:6e 1500 65535 true STATIC
vmk1 MPIO-1 IPv4 192.168.2.200 255.255.255.0 192.168.2.255 00:50:56:72:b6:bd 9000 65535 true STATIC
vmk2 MPIO-2 IPv4 192.168.3.200 255.255.255.0 192.168.3.255 00:50:56:7d:2a:83 9000 65535 true STATIC

~ # esxcfg-nics -l
Name PCI Driver Link Speed Duplex MAC Address MTU Description
vmnic0 0d:00.00 e1000e Up 1000Mbps Full 00:25:90:15:d3:6e 1500 Intel Corporation 82573E Gigabit Ethernet Controller
vmnic1 0f:00.00 e1000e Up 1000Mbps Full 00:25:90:15:d3:6f 1500 Intel Corporation 82573L Gigabit Ethernet Controller
vmnic2 11:02.00 e1000 Up 1000Mbps Full 00:0e:0c:d8:22:e6 9000 Intel Corporation PRO/1000 GT Desktop Adapter
vmnic3 11:03.00 e1000 Up 1000Mbps Full 00:1b:21:86:fd:fc 9000 Intel Corporation PRO/1000 GT Desktop Adapter

If i do esxcli swiscsi nic list -d vmhba32 i get this:

~ # esxcli swiscsi nic list -d vmhba32
Could not find valid OIDs for adapter vmhba32
Errors:
List nic failed in IMA.

But if i do esxcli swiscsi nic list -d vmhba34 i get this:

~ # esxcli swiscsi nic list -d vmhba34
vmk1
pNic name: vmnic2
ipv4 address: 192.168.2.200
ipv4 net mask: 255.255.255.0
ipv6 addresses:
mac address: 00:0e:0c:d8:22:e6
mtu: 9000
toe: false
tso: true
tcp checksum: false
vlan: true
link connected: true
ethernet speed: 1000
packets received: 70
packets sent: 11
NIC driver: e1000
driver version: 8.0.3.1-NAPI
firmware version: N/A

vmk2
pNic name: vmnic3
ipv4 address: 192.168.3.200
ipv4 net mask: 255.255.255.0
ipv6 addresses:
mac address: 00:1b:21:86:fd:fc
mtu: 9000
toe: false
tso: true
tcp checksum: false
vlan: true
link connected: true
ethernet speed: 1000
packets received: 70
packets sent: 11
NIC driver: e1000
driver version: 8.0.3.1-NAPI
firmware version: N/A

Thanks!!!!

[m.casco]

an update:
i have setup raid 0 for speed test but i still have the same performance, I do not know which is the bottleneck in my setup.

thanks

[m.casco]

Another update:

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?

Thanks!