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  • 1.  About changing management ip in PBR environment

    Posted 07/24/25 01:53 AM

    Hi,

    In an IBM Flashsystem PBR environment, if the management IP of the DR storage needs to be changed, do we need to re-authenticate each other?

    If so, how do we do it?



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    JONGCHUL LEE
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  • 2.  RE: About changing management ip in PBR environment

    Posted 07/24/25 08:25 AM
    Edited by Nezih Boyacioglu 07/24/25 08:25 AM

    Hi,

     To change the IP address of the partner system, first use the command "chpartnership -stop remote-system-name" to stop the partnership. Then, use "chpartnership -clusterip newipaddress remote-system-name" and start the partnership with "chpartnership -start remote-system-name"



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    Nezih Boyacioglu
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  • 3.  RE: About changing management ip in PBR environment

    Posted 07/24/25 08:32 AM

    That command (and associated 'cluster_ip' property) is only applicable if the partnership between systems is an IP partnership. It is not required for an FC partnership.



    ------------------------------
    Chris Canto
    Software Developer
    IBM
    Hursley
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    Original Message


  • 4.  RE: About changing management ip in PBR environment

    Posted 07/24/25 08:35 AM

    Thanks Chris, I assumed it was an ip partnership :) 



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    Nezih Boyacioglu
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    Original Message


  • 5.  RE: About changing management ip in PBR environment

    Posted 07/24/25 09:14 AM

    Hi Chis,

    just a quick question about IP partnership : do we need a DNS for the ip partnership, or is communication between the management ip addresses sufficient  ? 



    ------------------------------
    Mark van Ballegoy
    System Enigeer
    E-Storage
    Utrecht
    +31653270373
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    Original Message


  • 6.  RE: About changing management ip in PBR environment

    Posted 07/24/25 09:34 AM

    DNS is not required for the partnership.  The connectivity required for an IP partnership is in the product documentation.  
    For policy-based replication, the IP connectivity requirements are in the Planning topic, for example:

    https://www.ibm.com/docs/en/sanvolumecontroller/8.7.3?topic=recovery-planning-replication-disaster



    ------------------------------
    Chris Canto
    Software Developer
    IBM
    Hursley
    ------------------------------

    Original Message


  • 7.  RE: About changing management ip in PBR environment

    Posted 07/25/25 02:18 AM

    The current customer environment is FC PBR environment, and if the management IP changes, do you need to re-authenticate for RestApi communication?



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    JONGCHUL LEE
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  • 8.  RE: About changing management ip in PBR environment

    Posted 07/25/25 01:18 PM

    You shouldn't need to make any additional changes.  After you change the mangagement IP on one system, that partnered system should be told about that change (in-band, over the FC link) and IP communication should be restablished over the new IPs using the existing certificates in the trust store.



    ------------------------------
    Chris Canto
    Software Developer
    IBM
    Hursley
    ------------------------------

    Original Message


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