Re: ORA-27101 and ORA-12640

On 23 Apr 2005 08:53:08 -0700, "markg_at_bolthouse.com" <markg_at_bolthouse.com> wrote:

>Sorry, I am new at using a news group. I have been able to resolve
>issues myself in the past 5 years I have worked with Oracle and it has
>been a sleepless night. There is nothing in the WBFALRT.log that would
>indicate an error ( WBF is our SID). The last entry in the log is
>related to an issue with a Portal user. Sorry for the typo;The version
>is 8.1.7.0.0. I meant to type oradim.log.
>
>The description I forgot to include is:
>
>ORA-12640:
>Authentication adapter initialization failed
>This error is found in the oradim.log after attempting to start the
>Oracle Service.
>
>I am receiving the following errors when starting oracle via DBA Studio
>or SQL+:
>
>Ora-01034 Oracle Not Available
>Ora-27101: Shared Memory Realm does not exist
>
>Windows event logs are also clean.
>
>What addiditional info would be helpful?

You didn't install Oracle using the domain administrator, did you? Oracle needs to be installed using the *local* administrator. The error ora-12640 occurs when Oracle can't contact the SAM, likely the domain SAM on your PDC or BDC.
As a workaround, try setting
sqlnet.authentication_services = none
in %ORACLE_HOME%\network\admin\sqlnet.ora and retry bouncing the database.

--
Sybrand Bakker, Senior Oracle DBA