FILE STATUS CODES

          It is a two-byte working storage item. The first byte denotes the general category whereas second byte denotes the particular type of error message under that category.

0		Successful OPEN/READ/WRITE Operation
	0	Successful completion
	2	Duplicate key was detected which is allowed as per definition of AIX.
	4	Length of record just READ didn’t conform  to the fixed length attributes for the file.
	5	Referenced Optional file is not present during OPEN. If open mode is I-O or EXTEND, then file will be created.
	7	Open or Close statement is executed with a phrase that implies a tape file (ex NO REWIND) whereas the file is not in TAPE.
1		When AT END condition fails
	0	Sequential READ is attempted on 1.after the end of file is reached 2.optional file that is not present.
	4	Sequential READ was attempted for a relative file and RRN is larger than the maximum that can be stored in the relative key data item.
0		When INDEX Key fails
	1	Sequence error exists for sequentially accessed index file.
	2	Attempt was made to write a record that would create a duplicate key.
	3	Record not found.(for keyed random access)
	4	Space not found for WRITE
3		Permanent Open error
	5	Opening a non-optional file that was not present.
	7	Open mode is not permitted.
	8	Open issued for a file that was closed previously with lock
	9	File attribute mismatch-Open failed.
4		Logic error in opening/closing/deleting
	1	OPEN a opened file.
	2	CLOSE attempted for not opened file.
	3	IO statement before the current REWRITE/DELETE is not successful.
	4	REWRITE attempt with invalid length
	7	READ file which is not opened in INPUT or I-O mode
	8	WRITE file which is not opened in I-O OUPUT or EXTEND mode
	9	DELETE or REWRITE file which is not opened in I-O mode.
9		Implementation defined
	1	VSAM password error
	2	Logic error
	3	VSAM resource unavailable
	6	No DD statement specified for VSAM file.
	7	File integrity verified for VSAM file.