MD3200i + 2 Dell 5424 switches: no ping to the iSCSi ports from anywhere!

IT_Group1
IT_Group1 used Ask the Experts™
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All 8 ports (4 per controller) has been setup with different IP's in 2 segments, yet no one is answering in ping.

the ping has been executed from both ESX console with NIC directly connected to the same VLAN, and from the switches themselves (there's a reply from the management IP of the VLAN, but nothing more).

Please assist, we're in the middle of a production setup, and it's frustrating.

BTW, the both switches are set exactly like this great tutorial: http://digitallibraryworld.com/?p=17 

Many thx
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
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Expert of the Year 2017

Commented:
can you use vmkping?


vmkping issues pings from the vmkernel port group "vmotion interface" (as opposed to the service console's vswif interface if you were to do a regular ping).  It can be use to verify connectivity between the kernel interface and other hosts or IP storage arrays.
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
could you also upload me a screen shot of your networks, vswitches

Author

Commented:
Hi hanccocka, how are you?
VMKping doesn't work as well.

Here are the screenshots, Thx

vmnewtork-1.JPG
vmnewtork-2.JPG
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
not bad, problems with a 2008 R2 install at the moment!

okay let me have a look, and create some netwrk diagrams here, I think what we need to do is pull this apart, strip it down, and get one pair of links working through one switch.
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
and your MD3200i is on storage network 197.167.2.20?
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
I assume you've followed the article at http://digitallibraryworld.com/?p=17  exactly?

if so, have you added the VLAN Tags to the port groups vSwitch1
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
and have you enabled jumbo frames on your ESX server?

Author

Commented:
and your MD3200i is on storage network 197.167.2.20? - Yap, and also on the 197.167.5.x (4 ports per segment).
As for the jumbo frames, no I didn't enable them on the ESX, but why do I have to enable VLAN tags on the vSwitch, when the ports are connected to different switches and vlans without trunking?

Thx and if I can assist with the 2k8 r2, don't hesitate ;-)
VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017
Commented:
I would agree as these are access ports and not trunks but this command

switchport general acceptable-frame-type tagged-only

means:-

Use the switchport general acceptable-frame-types tagged-only interface configuration command to discard untagged frames at ingress. To enable untagged frames at ingress, use the no form of this command.

I'm looking at the above commands on the Dell switches?

So the switch is expecting 802.1Q tags.

So, either enter the Tags on ESX server, or use the no form of the command.

and earlier in the switch config you've got....

port jumbo-frame

so you need to following my solution here for this:-

http://www.experts-exchange.com/Software/VMWare/Q_26700015.html

Author

Commented:
Great I'll try it. Should I enable jumbo frames on all the vSwitches or just the one which connected to the MD?
As for the tagging, I'll turn them off and see how it's going.

Do you believe that that's our problem? Why there's no ping from the switch itself via telnet??

Cheers

Author

Commented:
NO good. after the NO form, still no pinging. Any ideas?
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017
Commented:
you need to enable jumbo frames on the vSwitchs connected to the Dell 5424 switches, and you may also have to enable jumbo frames on the MD as well.

Author

Commented:
First of all you're the man.
Second of all - it's amazing; via the GUI (web manage of the 5424) all is working!! Via the CLI, only bad stuff is going on (Yeah, yeah i know its my bad for being born to the Windows world..).

Anyhow friendo, problemo solved.

Last but not least hanccocka, people like you are THE reason we're renewing our subscription every month WITH A SMILE.

MANY THX
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
Many Thanks, sorry we've been a bit slow this morning Data Commnications failed into the building at 12.10 today, so we're on backup 3G Wireless Communications.

Glad it's working for you again!

oh we fixed the Win 2k8 R2 issue, we killed the machine and started again!

All the best until next time! IT_Group, and I was looking forward to a trip to Israel!

Author

Commented:
hanccocka you'll be more than welcomed at our humble datacenter in Jerusalem.

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