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Dataguard Configuration for SAP on SUSE Linux

Hi Experts,

While preparing SAP ECC ABAP System on Standby Server, is it mandatory to use virtual hostnames ?

Primary ECC system is running with a virtual hostname for both SAP & Database.

In this scenario, how will I prepare the primary & standby tnsnames.ora for switch over operations, as it looks like, both primary and standby will have the same virtual hostnames during normal operations.

Thanks & Best Regards,

Kiran Sathyan.

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  • Posted on Jun 02, 2014 at 01:33 PM

    Hi

    Virtual host name is useful to minimize impact of switchover for and external systems (clients, satellite systems...), it allows to keep identical SAP instance profiles on both nodes.

    For Sql*net config files you will need to use the physical hostname.

    Regards

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    • Hi

      You can directly update configuration files, and at least restart the listnener.

      %ORACLE_HOME%\NETWORK\ADMIN\tnsnames.ora

      [...]

      (HOST = 1st_host_Physical_name)

      [...]

      %ORACLE_HOME%\NETWORK\ADMIN\sqlnet.ora

      [...]

      (HOST = 1st_host_Physical_name)

      [...]


      Also make sure that if instance parameter "local_listener" is set it is using physical hostname.

      Regards

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