When using multiplexed control files, that is, more than one control file is referenced in the initialization parameter file, remove the parameter from the initialization parameter file referencing the control filename indicated in the message and restart the instance. If the message does not recur, remove the problem control file from the initialization parameter file and create another copy of the control file using a new filename in the initialization parameter file. Locate and specify the correct control file for this database, then retry the operation. When using multiplexed control files, that is, more than one control file is referenced in the initialization parameter file, remove the control filename listed in the message from the initialization parameter file and restart the instance. If the message does not recur, remove the problem control file from the initialization parameter file, create another copy of the control file, and include the new filename in the initialization parameter file.
Additional space is needed for system overhead.
That is, all the files must be for the same database and from the same time period. Specify at least one valid control file and retry the operation. Controlfiles created by release 8.0.2 were missing some records. These records are automatically added by resizing the contolfile when attempting to run a later release. The resize failed.