In this post, you’ll learn more about the Oracle ErrorORA-01115: IO error reading block from file string (block # string) with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-01115: IO error reading block from file string (block # string)
Reason for the Error ORA-01115: IO error reading block from file string (block # string)
Device on which the file resides is probably offline
How to fix the Error ORA-01115: IO error reading block from file string (block # string) ?
You can fix this error in Oracle by following the below steps
Restore access to the device