Unique Service Names in Data Guard ?
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Thread: Unique Service Names in Data Guard ?

  1. #1
    Join Date
    Jan 2003
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    Denver
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    Unique Service Names in Data Guard ?

    Well I used the Oracle docs and have two machines that both come up and all the commands working out but my logs dont get sent.

    I know it has to do with my lack of understanding of the tnsnames and listener configs for Data Guard.

    The Docs say to use the same db_name and instance_name but I cant get connectivity to both unless I use the same service_name = db_name. That wont work as I need a different service_name for the standby so the primary knows where to ship them off too but I cant find this info anywhere.

    Thanks in advance.

  2. #2
    Join Date
    Nov 2001
    Posts
    335
    How about using different domains?

    DB.MYDOMAIN1=
    DB.MYDOMAIN2=
    One, who thinks that the other one who thinks that know and does not know, does not know either!

  3. #3
    Join Date
    Feb 2000
    Location
    Washington DC
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    You are confused with terminology interpretations of

    instance_name ---> Memory structures associated with database
    db_name ----> databse associated with instance
    service_name ---> a connect string which locates database associated with instance.

    db_name=instance_name!= service_name

    You can configure different service_name(name it xyz) to your standby instance and use that service_name in initSTBY.ora for log transport.
    Last edited by sreddy; 04-14-2003 at 04:38 PM.
    Reddy,Sam

  4. #4
    Join Date
    Jan 2003
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    Originally posted by sreddy

    You can configure different service_name(name it xyz) to your standby instance and use that service_name in initSTBY.ora for log transport.
    Well that is what I thought. But I was up passed midnight trying to get the xyz service_name to work with connect /@xyz as sysdba.

    This is windows in my lab and try as I might I would create a new windows service xyz and it just never works I must have tried it 50 times and concluded it would only work when the service_name = db_name.

    I would really like to make this work since I was just handed a broken Data Guard system on Solaris at work. I would like to fully understand windows manual setup before venturing forth to fix the OEM auto setup here.

    btw doesnt the service_name need to be in the initPrimary.ora and not initSTDBY.ora ? I wish the docs were more complete. A couple examples would be great.

    Thank you for your support


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