Multiple instance problem on 11.0 and Oracle 8.1.7.0

[T G Manikandan]

I probably think that the shared memory,semaphore segments are not cleaned properly.

Bring down all the instances of oracle.

#ipcs
to view the shared memory and semaphore segments owned by oracle user.

#ipcrm -s
#ipcrm -m

REmove all the entries that are used by the oracle user.
Now bring up the instances.

Please post your results.


Thanks

[T G Manikandan]

Did you check the alert log file for messages.
Post the messages from the alertlog file .

THanks

[T G Manikandan]

What is oracle user group name in your new installed machine.

[Tommy Brown]

What we found was:
The Sem* parameters were not configured correctly. We replicated the settings from the "old" server since it was of similar memory/cpu config. That appeared to resolve the multiple instance difficulties.
Thanks to all who have submitted responses.
Tommy