I ocassionally expeirence the following error message
SHUTDOWN: Waiting for active calls to complete or
SHUTDOWN: Waiting for active logons to complete when a Shudown immediate is given to Oracle. The database just hangs. Metalink says that this is fixed in 9i but we are in 8i. the workaround is
1.shutdown abort.
2.startup restrict
3.shutdown immediate

I was wondering if anybody has written a script to check for this.