Node WWN and Port WWN - Storage

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Thread: Node WWN and Port WWN

  1. Node WWN and Port WWN

    Hi,
    Do you know the difference between Node WWN and Port WWN? Thanks


  2. Re: Node WWN and Port WWN


    "BL" wrote in message
    news:1193740362.066328.245820@t8g2000prg.googlegro ups.com...
    > Hi,
    > Do you know the difference between Node WWN and Port WWN? Thanks
    >


    It's similiar to a parent/child relationship - a Node (the parent) can have
    multiple Ports (the child). Not all vendors configure the relationship this
    way, some will have a unique Node Name for each Port on a multi ported
    device.

    Moojit



  3. Re: Node WWN and Port WWN

    On 10 31 , 11 13 , "moojit" wrote:
    > "BL" wrote in message
    >
    > news:1193740362.066328.245820@t8g2000prg.googlegro ups.com...
    >
    > > Hi,
    > > Do you know the difference between Node WWN and Port WWN? Thanks

    >
    > It's similiar to a parent/child relationship - a Node (the parent) can have
    > multiple Ports (the child). Not all vendors configure the relationship this
    > way, some will have a unique Node Name for each Port on a multi ported
    > device.
    >
    > Moojit


    Thanks


  4. Re: Node WWN and Port WWN

    > It's similiar to a parent/child relationship - a Node (the parent) can have
    > multiple Ports (the child). Not all vendors configure the relationship this
    > way, some will have a unique Node Name for each Port on a multi ported
    > device.


    On a more practical note, for servers, each HBA will have its own WWNN
    and WWPN straight out of the box. If you have multiple HBAs installed
    in a single server, then the server will often take the WWNN of the
    first HBA and use that as *its* WWNN. All the other HBAs will be
    instructed to report their WWNN as the server's WWNN.


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