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How to Implement multiple iSCSI SAN deployment with iSCSI switch for multiple ESXi ?

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  • How to Implement multiple iSCSI SAN deployment with iSCSI switch for multiple ESXi ?

    Hi All,

    I'm about to integrate additional iSCSI SAN to my existing directly connected iscsi SAN using redundant switch as well

    the following picture is the existing deployment which is working without switch in between the SAN: see Deployment.jpg

    in the current environment each cable has its own IP address, however

    here's what I'd like to achieve: see Drawing1.jpg

    is there any best practice or IP addressing change that i have to make on the blue line ?

    Do i have to use all different IP subnet for each cable of every blue cable can have the same subnet ?

    once this setup has been done i can then configure the vswitch to use Jumbo frame as well as the MD3000i (MTU 9000).

    any kind of help would be greatly appreciated.

    Thanks,
    AWT
    Attached Files

  • #2
    Re: How to Implement multiple iSCSI SAN deployment with iSCSI switch for multiple ESX

    Have you seen this document?
    http://www.vmware.com/pdf/vsphere4/r...si_san_cfg.pdf
    Marcel
    Technical Consultant
    Netherlands
    http://www.phetios.com
    http://blog.nessus.nl

    MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
    "No matter how secure, there is always the human factor."

    "Enjoy life today, tomorrow may never come."
    "If you're going through hell, keep going. ~Winston Churchill"

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    • #3
      Re: How to Implement multiple iSCSI SAN deployment with iSCSI switch for multiple ESX

      Originally posted by Dumber View Post
      Thanks for the reply mate,

      based on the suggested link
      Code:
      http://www.vmware.com/pdf/vsphere4/r40/vsp_40_iscsi_san_cfg.pdf
      what I'm going to do is to assign each blue cable IP address 192.168.1.0/24 so all of those blue cable is all in the same subnet.

      another question is that would there be any significant effect if somehow I add more pNIC into the ESXI host (more green cable going into the ESXi hosts), so in the LAN vSwitch i add 4 uplinks port for access to my LAN.

      adding some more blue cable into my SAN host will not going to help since this MD3000i is just pure / basic SAN so it can only uses one controller active path while the other is failover.

      Thanks for your reply mate.

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      • #4
        Re: How to Implement multiple iSCSI SAN deployment with iSCSI switch for multiple ESX

        Albertwt,

        Take a look at the following LINK. This is from the "Dell Enterprise Technology Center" and provides a "best practice" for multipathing and load balancing for your particular array. Hope this helps.

        -Jason
        Last edited by VWA4; 14th May 2010, 02:31.
        MCSA/MCSE 2K3,MCITP:ESA,MCTS x 4,VCP x 2

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