ORA-00232 Snapshot control file is nonexistent, corrupt, or unreadable

Cause: The snapshot control file was found to be nonexistent, corrupt, or unreadable during an invocation of cfileUseSnapshot. Action: Call cfileMakeAndUseSnapshot again (or for the first time).

ORA-00306 Limit of %s instances in this database

Cause: Starting this instance would exceed the maximum number of instances allowed for this database. This message occurs only with STARTUP shared and multiple instances. Action: You cannot start more than the lower of a) port-specific limit as to the number of instances b) the number of instances specified at create-database time