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Technician Port - Can it remained cabled after initial configuration

  • 1.  Technician Port - Can it remained cabled after initial configuration

    Posted 28 days ago
    Hi

    I have always used a direct connected workstation to connect to the Technician Port on the V5000 , V7000 series Storage Arrays
    Its always been disconnected after initial setup.

    Does it need to be disconnected though

    I understand it should not be connected via a Switch Port
    But if it was connected via a NIC Port (direct cable) to (say) a Windows Server, can it stay connected
    (and specifically, the NIC port on the WIndows server would be disabled)

    I can test this the next time I go to the datacenter - but thought someone within the community may know



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    AnalogKid
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  • 2.  RE: Technician Port - Can it remained cabled after initial configuration

    IBM Champion
    Posted 27 days ago
    it's disconnected because web service (tomcat) restarts to use new cluster ip after initial setup.

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    Nezih Boyacioglu
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  • 3.  RE: Technician Port - Can it remained cabled after initial configuration

    Posted 27 days ago
    IMHO there is no concern having a service PC permanently attached to the tech port.
    It may be set to obtain IP address via DHCP (from the system's tech port), or just configure it with a fixed IP in the 192.168.0.x range.
    All details in IBM Docs at The technician port.

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    Christian Schroeder
    IBM SpecV Storage Support with Passion
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  • 4.  RE: Technician Port - Can it remained cabled after initial configuration

    Posted 27 days ago
    I realized I missed to address your initial question regarding the disconnection.
    I believe, this might be solved with assigning a fixed IP address.

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    Christian Schroeder
    IBM SpecV Storage Support with Passion
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  • 5.  RE: Technician Port - Can it remained cabled after initial configuration

    Posted 27 days ago
    The technician port must be directly connected to a personal computer/laptop only when the IBM SSRs/CEs initialize a system or service a node. Spectrum Virtualize creates an event in the Storwize/FlashSystems when someone connects to the technician port to notify the storage administrators that someone is trying to access the storage system. You will probably miss that security notification if you keep the personal computer/laptop always connected to the storage system.

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    Kannan Subramani
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  • 6.  RE: Technician Port - Can it remained cabled after initial configuration

    Posted 26 days ago
    Thank you for the responses

    Here is further (what is on my mind)

    1) I would like to leave the Port plugged in 'all' the time
    2) It would be on a standalone NIC port - directly cabled between a server AND the Technician Port RJ45
    3) The NIC would be 'disabled' in the Server - so no 'packet' traffic would be passing to the Technician Port
    4) There would be no switch between the server and the Technician Port

    Would this work?




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    AnalogKid
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  • 7.  RE: Technician Port - Can it remained cabled after initial configuration

    IBM Champion
    Posted 26 days ago
    why you want to use Technician port, you have service ip's on both canisters?

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    Nezih Boyacioglu
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  • 8.  RE: Technician Port - Can it remained cabled after initial configuration

    Posted 26 days ago
    Excellent Question

    1) I 'dont know' - This is probably my lack of knowledge
    ----My thoughts were; if a Canister Corrupted, the only way back in would be via the Technician Port

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    AnalogKid
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  • 9.  RE: Technician Port - Can it remained cabled after initial configuration

    IBM Champion
    Posted 26 days ago
    nope you don't need to access technician port. If a canister fails you have another one to see the state of the failed one. we are using service ip and service interface for this kind of things. add service ip for both canisters, try to access via your local network https://serviceipaddr/service 
    all you need is this one. leave T-Port alone :)

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    Nezih Boyacioglu
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  • 10.  RE: Technician Port - Can it remained cabled after initial configuration

    Posted 26 days ago
    Fully understood

    I have it 'all' set up

    Service IP, Management IP etc etc

    I was trying to plan for a 'worst scenario' - both Canisters un responsive, etc etc
    But - In that case - Its unlikely the service port would work

    Thank you for the advice (and patience) :-)

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    AnalogKid
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  • 11.  RE: Technician Port - Can it remained cabled after initial configuration

    Posted 25 days ago
    Technician Port !!I liked your advice on the Technician Port - I think it deserves a T-Shirt  :-)
    Thank you Nezih, Christian & Kannan for responses to the Post


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    AnalogKid
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  • 12.  RE: Technician Port - Can it remained cabled after initial configuration

    Posted 14 days ago
    Well done!
    I'm wearing size M, by the way ;)
    Will have to share this with the internal support community for sure!

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    Christian Schroeder
    IBM SpecV Storage Support with Passion
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