ISCSI performance issue - Storage

This is a discussion on ISCSI performance issue - Storage ; We are running windows 2003 Service Pack 2 along with ISCSI initator 2.05 - Powerpath 4.6.1 attaching to an EMC CX340C all NIC are attached to a cisco 6513 switch. We are only seeing between 2% - 5% of the ...

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Thread: ISCSI performance issue

  1. ISCSI performance issue

    We are running windows 2003 Service Pack 2 along with ISCSI initator 2.05 -
    Powerpath 4.6.1 attaching to an EMC CX340C all NIC are attached to a cisco
    6513 switch. We are only seeing between 2% - 5% of the NIC card being
    used (task manager - networking).

    What type of performance should we see? I am figuring 2%-5% is kinda of
    the low side.

    Opinions are welcomed.

    Thanks,
    Eric Sabo



  2. Re: ISCSI performance issue

    That's a loaded question. If you have only 2 disks on the target side
    provisioned and you are doing 100% random 512b writes, then yeah, it's
    gonna be kinda slow.

    If you were to do 100% cache read or write, you can easily run wirespeed
    using 2.05 assuming you've got a decent Intel server NIC (using other
    targets anyway).

    How many spindles on the backend? What type of workload (read%,
    sequential/random%, request size, etc)?

    ~kenny

    Sabo, Eric wrote:
    > We are running windows 2003 Service Pack 2 along with ISCSI initator 2.05 -
    > Powerpath 4.6.1 attaching to an EMC CX340C all NIC are attached to a cisco
    > 6513 switch. We are only seeing between 2% - 5% of the NIC card being
    > used (task manager - networking).
    >
    > What type of performance should we see? I am figuring 2%-5% is kinda of
    > the low side.
    >
    > Opinions are welcomed.
    >
    > Thanks,
    > Eric Sabo
    >
    >


  3. Re: ISCSI performance issue

    Run some tests withm I/O Meter and see what happens. :{>

    --
    Chuck Timon, Jr.
    Microsoft Corporation
    Windows Server 2008 Readiness Team
    This posting is provided 'AS IS" with no warranties, and confers no rights.
    "Sabo, Eric" wrote in message
    news:e8Y7Zvv9HHA.1208@TK2MSFTNGP03.phx.gbl...
    > We are running windows 2003 Service Pack 2 along with ISCSI initator
    > 2.05 - Powerpath 4.6.1 attaching to an EMC CX340C all NIC are attached to
    > a cisco 6513 switch. We are only seeing between 2% - 5% of the NIC
    > card being used (task manager - networking).
    >
    > What type of performance should we see? I am figuring 2%-5% is kinda
    > of the low side.
    >
    > Opinions are welcomed.
    >
    > Thanks,
    > Eric Sabo
    >



  4. Re: ISCSI performance issue

    Where do I get I/O Meter, I never heard of that.


    "Chuck [MSFT]" wrote in message
    news:utpGn8y9HHA.3916@TK2MSFTNGP02.phx.gbl...
    > Run some tests withm I/O Meter and see what happens. :{>
    >
    > --
    > Chuck Timon, Jr.
    > Microsoft Corporation
    > Windows Server 2008 Readiness Team
    > This posting is provided 'AS IS" with no warranties, and confers no
    > rights.
    > "Sabo, Eric" wrote in message
    > news:e8Y7Zvv9HHA.1208@TK2MSFTNGP03.phx.gbl...
    >> We are running windows 2003 Service Pack 2 along with ISCSI initator
    >> 2.05 - Powerpath 4.6.1 attaching to an EMC CX340C all NIC are attached to
    >> a cisco 6513 switch. We are only seeing between 2% - 5% of the NIC
    >> card being used (task manager - networking).
    >>
    >> What type of performance should we see? I am figuring 2%-5% is kinda
    >> of the low side.
    >>
    >> Opinions are welcomed.
    >>
    >> Thanks,
    >> Eric Sabo
    >>

    >




  5. Re: ISCSI performance issue

    Better yet, use DataMover's automated performance tests. There's a 32bit
    and 64bit version available for Windows.

    http://www.moojit.net/Networking/dow...OVERFORWINDOWS

    You will need to request a 30 day license to run the automated performance
    tests. Iometer can't compare to this tool.

    Moojit

    "Sabo, Eric" wrote in message
    news:uQZWUO99HHA.1416@TK2MSFTNGP03.phx.gbl...
    > Where do I get I/O Meter, I never heard of that.
    >
    >
    > "Chuck [MSFT]" wrote in message
    > news:utpGn8y9HHA.3916@TK2MSFTNGP02.phx.gbl...
    >> Run some tests withm I/O Meter and see what happens. :{>
    >>
    >> --
    >> Chuck Timon, Jr.
    >> Microsoft Corporation
    >> Windows Server 2008 Readiness Team
    >> This posting is provided 'AS IS" with no warranties, and confers no
    >> rights.
    >> "Sabo, Eric" wrote in message
    >> news:e8Y7Zvv9HHA.1208@TK2MSFTNGP03.phx.gbl...
    >>> We are running windows 2003 Service Pack 2 along with ISCSI initator
    >>> 2.05 - Powerpath 4.6.1 attaching to an EMC CX340C all NIC are attached
    >>> to a cisco 6513 switch. We are only seeing between 2% - 5% of the
    >>> NIC card being used (task manager - networking).
    >>>
    >>> What type of performance should we see? I am figuring 2%-5% is
    >>> kinda of the low side.
    >>>
    >>> Opinions are welcomed.
    >>>
    >>> Thanks,
    >>> Eric Sabo
    >>>

    >>

    >
    >




  6. Re: ISCSI performance issue

    http://www.iometer.org/

    --
    Chuck Timon, Jr.
    Microsoft Corporation
    Windows Server 2008 Readiness Team
    This posting is provided 'AS IS" with no warranties, and confers no rights.
    "Sabo, Eric" wrote in message
    news:uQZWUO99HHA.1416@TK2MSFTNGP03.phx.gbl...
    > Where do I get I/O Meter, I never heard of that.
    >
    >
    > "Chuck [MSFT]" wrote in message
    > news:utpGn8y9HHA.3916@TK2MSFTNGP02.phx.gbl...
    >> Run some tests withm I/O Meter and see what happens. :{>
    >>
    >> --
    >> Chuck Timon, Jr.
    >> Microsoft Corporation
    >> Windows Server 2008 Readiness Team
    >> This posting is provided 'AS IS" with no warranties, and confers no
    >> rights.
    >> "Sabo, Eric" wrote in message
    >> news:e8Y7Zvv9HHA.1208@TK2MSFTNGP03.phx.gbl...
    >>> We are running windows 2003 Service Pack 2 along with ISCSI initator
    >>> 2.05 - Powerpath 4.6.1 attaching to an EMC CX340C all NIC are attached
    >>> to a cisco 6513 switch. We are only seeing between 2% - 5% of the
    >>> NIC card being used (task manager - networking).
    >>>
    >>> What type of performance should we see? I am figuring 2%-5% is
    >>> kinda of the low side.
    >>>
    >>> Opinions are welcomed.
    >>>
    >>> Thanks,
    >>> Eric Sabo
    >>>

    >>

    >
    >



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