Control data section

Offsets		Name	Length	Format	Description
0	0	R748CLVL	1	binary	Gatherer level.
1	1	R748CTYP	6	EBCDIC	Control unit type.
7	7	R748CMDL	3	EBCDIC	Control unit model.
10	A	R748CSER	10	EBCDIC	Primary control unit serial number.
20	14	R748CVSN	1	binary	Version of link statistics definition: X'00' = Original version of link statistics X'01' = Link statistics extended
21	15	R748CAE	3	binary	Abend code (SDWACMPC) with: First 12 bits = System completion code. Second 12 bits = User completion code.
24	18	R748CRTN	2	binary	IDCSS01 return code.
26	1A	R748CSC	1	binary	Status code: 00 successfully processed. 04 IOS return code. R748CIOC ¬= 0. 08 IDCSS01 return code. R748CRTN ¬= 0. 98 SYSTEM or USER ABEND. R748CAE ¬= 0.
27	1B	R748CIOC	1	binary	IOS return code. If this field is not zero, no Link Statistic sections are available.
28	1C	R748CFDV	2	binary	Failing device.
30	1E	R748CVOL	6	EBCDIC	Volume serial of the device from which statistics are measured.
36	24	R748CDEV	2	EBCDIC	Device number of the device from which statistics are measured.
38	26	R748CFLG	1	binary	Flags Bit Meaning when set 0 Extent pool statistics valid 1-7 Reserved.
39	27		1		Reserved.
40	28	R748CINT	4	binary	Number of seconds that passed since the link statistics have been collected for the last time.
44	2C	R748CFTM	4	EBCDIC	Time when first record was written. Reserved for duration processing.
48	30	R748CFDT	4	EBCDIC	Date when first record was written. Reserved for duration processing.
52	34	R748CFCI	4	EBCDIC	Interval length of first record. Reserved for duration processing.