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  • 1.  What is the functionality of Data Mover ?

    Broadcom Employee
    Posted Oct 11, 2011 08:09 PM

    I read in few documents it helps in mass movement of data operations ....includes KB Article: 1021976
    Data Mover recognizes a “VAAI compliant” array and then hardware offloads that block operation to the array
    Does that mean in every operation(Read/Write) between ESX host & Storage ....Data mover plays a key role ..OR is it specific to any operations?
    With a VAAI compliant array ..does my ESX host CPU perform much better ?



  • 2.  RE: What is the functionality of Data Mover ?

    Posted Oct 12, 2011 12:55 AM

    the ESX datamover(s) are involved in ALL IO that goes on via an ESX host.  So, if the DMs becomes more efficient (e.g. you have an array that supports VAAI) then yes, you will see reduced CPU utilization for operations that can use the enhanced datamover.



  • 3.  RE: What is the functionality of Data Mover ?

    Broadcom Employee
    Posted Oct 12, 2011 03:36 PM

    Thanks for your udpate  Matt ,Is there any document which explains the same ?If you can share the same that would be great



  • 4.  RE: What is the functionality of Data Mover ?

    Posted Oct 12, 2011 07:01 PM

    Maybe http://www.yellow-bricks.com/2011/02/18/blocksize-impact/ helps understanding the different datamovers.

    André