Cause
An IO error occurred on the named online log.
An IO error occurred on the named online log.
Restore accessibility to file, or restore file from backup.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e0.htm
https://community.oracle.com/message/9536532
https://community.oracle.com/message/9857552
https://community.oracle.com/message/2212392
https://community.oracle.com/message/9278496
https://community.oracle.com/message/9767290
https://community.oracle.com/message/9764977
https://community.oracle.com/message/4059861
https://community.oracle.com/message/2727094
https://community.oracle.com/message/2552931
https://community.oracle.com/message/2431592
https://community.oracle.com/message/1221734
https://community.oracle.com/message/4471284
https://community.oracle.com/message/10013352
https://community.oracle.com/message/4025734
https://community.oracle.com/message/1940441
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