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ORA-06124:

NETTCP: timeout waiting for ORASRV
Cause: The ORACLE server process was started but failed to respond after N secs.
Action: For heavily loaded systems this is not an uncommon occurrence. Increase the value of N (the default is 30) by placing the following entry in the CONFIG.ORA file: SQLNET ORASRV_WAIT = <no. of secs> which will come into effect the next time the SQL*Net TCP/IP server is started.