Check the error code returned as additional information. Contact customer support. Oracle tried to read from a non-existant location. Contact customer support. Verify init.ora parameters.
Additional information is the lock number and number of blocks.
Additional information is the Unix errno, block number, and umber of blocks being read. Possible truncated read of database file. Check the Unix errno returned as additional information. Check the Unix errno returned as additional information. An asynchronous read or write operation failed.