Oracle Message ORA-27063 - number of bytes read/written is incorrect

ERRORnumber of bytes read/written is incorrect
CAUSEthe number of bytes read/written as returned by aiowait does not match the original number, additional information indicates both these numbers
ACTIONcheck errno

197185AIX upgrade from 4.3.2 to 4.3.3 Database crashes with KCF
904490Automatic enhancement of control files
391Archiver stuck