Oracle Message ORA-17507 - I/O request size string is not a multiple of logical block size ORA-17507 NOTES ERRORI/O request size string is not a multiple of logical block size CAUSEi/os are done in multiple of logical block size ACTIONCheck additional error messages 980152DB reports I/O error after inst of AIX 5.3 TL 05, 06, 07, 08977410Oracle error after upgrade to AIX 5.3 TL05