Correctly setting upWin 2008 R2 ISCSI Initiator for Multi Pathing to connect to our ISCSI SAN

Posted on 2011-10-10
Last Modified: 2012-05-12

We have a HP P4000 ISCSI SAN, i have a windows 2008R2 server that i have presented the LUN to and its all showing up fine as useable storage in Windows Disk management,

I want to confirm that i have it setup correctly for Multi Pathing, basically my Windows box has 2 NIC's for ISCSI traffic, When i add the new volume in the ISCSI target on the Logon i make sure i tick the box that says automatically reconnect and  Enable Multi-Path.

Do i need to do anything else, is there somewherei can check to make sure that both paths are being used, will it list 2 different connects to the storage for each lun thats presented?

Question by:ncomper
    LVL 1

    Accepted Solution

    On the target tab, click on the connected target to highlight - click 'Properties'. On the 'Session' tab, ensure you see more than one session. Highlight a session ID in the 'Identifier' area. Click Devices and click MPIO - check your load balancing properties (set this according to SAN vendors specs ... Least Que Depth is default). Make sure that both (at least 2) connections show as connected and ideally, both are active. You can click 'Details' to verify that both iSCSI IP/ports are being connected to.

    Also ... sometimes vendors, like HP/Dell have their own Device Specific Module (DSM) plugin to the iSCSI Initiator to help with Multipath Configuration ... check the HP site for one of these.


    LVL 5

    Author Comment

    Thanks, I have attached some screenshots, When i look at the devices they appear to have lots of sessions (Pic4) however my concern is that on Pic3 i only have a signle connection from one of my ISCSI NIC cards, if i try to add another i get an error saying to many connections, maybe im just mis understanding how this works , does that sound correct.



    Targets Tab Properties of a Target Sessions Tab Session Connections Properties of a Target Devices Tab Device Details MPIO Tab Favorite Targets Tab
    LVL 5

    Author Closing Comment


    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    What Is Threat Intelligence?

    Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

    The article will include the best Data Recovery Tools along with their Features, Capabilities, and their Download Links. Hope you’ll enjoy it and will choose the one as required by you.
    The recent Microsoft changes on update philosophy for Windows pre-10 and their impact on existing WSUS implementations.
    This tutorial will give a short introduction and overview of Backup Exec 2012 and how to navigate and perform basic functions. Click on the Backup Exec button in the upper left corner. From here, are global settings for the application such as conne…
    This tutorial will walk an individual through setting the global and backup job media overwrite and protection periods in Backup Exec 2012. Log onto the Backup Exec Central Administration Server. Examine the services. If all or most of them are stop…

    758 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    10 Experts available now in Live!

    Get 1:1 Help Now