Re: Two instances with same name on the same Server

ORACLE_HOME + ORACLE_SID together uniquely identify an instance.

Anjo.

"Vergara, Michael (TEM)" wrote:

> I've seen this happen in the following circumstance:
>
> Log in as oracle owner. svrmgrl -> startup -> exit.
> Log out. The instance is running.
>
> Now log in as another user who is a member of the dba
> group. svrmgrl -> startup -> exit. Do a ps -ef.
> You will see two instances running.
>
> Been there. Oops'ed this!
>
> Mike
>
> -----Original Message-----
> Sent: Tuesday, April 30, 2002 2:48 PM
> To: Multiple recipients of list ORACLE-L
>
> Hello Folks,
>
> I was teaching DBA stuff to a newbie, and I had him play with an Oracle
> 7.3.4 instance on an old HP box. I was teaching him about oradebug, ipcs
> and how to associate shared memory segments with an Oracle Instance. After
> some time, he came back and said there were 2 Oracle instances with the
> same name running.
>
> I did a ps -ef|grep pmon and was indeed surprised to find two process with
> the same SID running. An ipcs showed two Oracle Id's. I connected to the
> instance, and shut it down. It now showed only one pmon process, which I
> was not able to connect to, and had to kill all the background process. He
> does not remember the exact sequence of steps that he did. I tried to
> retrace the steps from whatever he said, but to no avail. I brought up the
> instance, did an ipcsrm, and tried to bring up another instance, all to
> nothing. 7.3.4 is the only Oracle version installed on this box. Any
> thoughts on this? I am curious to know.
>
> Raj
>
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> --
> Author:
> INET: Rajesh.Rao_at_jpmchase.com
>
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> Author: Vergara, Michael (TEM)
> INET: mvergara_at_guidant.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Anjo Kolk
  INET: anjo_at_oraperf.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
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