topic Re: ISCSI basic setup? in ONTAP Hardware

ISCSI basic setup?

stanleyj42 — Thu, 05 Jun 2025 06:10:29 GMT

I want to assign a LUN to a physical windows server 2008 R2 machine using two 1gb ethernet connections. I feel that i have everything in place but for some reason i cant get the multipathing to work and I want to see what im missing.

Fas 3240

Vprod - 276 - 10.127.6.2

Vprod - 277 - 10.127.7.2

Windows machine

Ethernet 2 - 10.127.6.10

Ethernet 3 - 10.127.7.10

Ethernet 2 is on vlan 276

Ethernet 3 is on vlan 277 I can ping both vprod interfaces from the windows machine.

I am able to discover both initiators but i can assign one of them. If I open MPIO the iscsi multipathing option is greyed out.

Any thoughts?

Re: ISCSI basic setup?

venkat3 — Wed, 13 Feb 2013 18:24:29 GMT

hi stanleyj42

welcome to communities.

>If I open MPIO the iscsi multipathing option is greyed out.

Can you post a screenshot of the greyed out option. I can look and help you better.

(ignore if you knew before --- I would recommend using Netapp SnapDrive tool for creating / mapping luns from windows end.)

did some google around this and found http://blogs.technet.com/b/migreene/archive/2009/08/29/3277914.aspx

>Looks like you have to make at least one iscsi connection before you have the option to enable MPIO for iscsi.

hope this helps

-srini

Re: ISCSI basic setup?

stanleyj42 — Thu, 14 Feb 2013 18:54:33 GMT

I saw a similar article to the one you posted and once i finally did get my sessions to connect the option did become avaiable. Thanks for the help.

Re: ISCSI basic setup?

stupendousman — Thu, 14 Feb 2013 22:06:11 GMT

With W2K8R2 MPIO is a feature that needs to be installed. Check if this feature is installed.