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ORA-01114 IO error writing block to file string (block # string)
Cause: The device on which the file resides is probably offline. If the file is a temporary file, then it is also possible that the device has run out of space. This could happen because disk space of temporary files is not necessarily allocated at file creation time.
Action: Restore access to the device or remove unnecessary files to free up space.
ORA-29701 unable to connect to Cluster Manager
Cause: Connect to the Cluster Manager (CM) failed or timed out.
Action: Verify that the CM was started. If the CM was not started, start it and then retry the database startup. If the CM died or is not responding, check the Oracle and CM trace files for errors.