| 0 (X'00') |
Character |
1 |
DS9KEYID |
Key identifier. |
| |
|
|
DS9KEY |
Constant value of X'09' in DS9KEYID |
| 1 (X'01') |
Binary |
1 |
DS9SUBTY |
Subtype number for format 9. |
| |
|
|
DS9SUBT1 |
Constant value of binary 1 to
represent subtype 1. If your program uses the
content of a format 9 DSCB, then it should test the subtype field
to learn the format of the DSCB. Currently only one subtype is defined
|
| Beginning of the
fields that are unique to the format 9 subtype 1 DSCB. |
| 2 (X'02') |
Binary |
1 |
DS9NUMF9 |
Number of format 9 DSCB's for this data set. Valid only in the first format 9 DSCB. |
| 3 (X'03') |
Character |
1 |
DS9FLAG1 |
Format 9 DSCB flag byte 1. |
| |
1 . . . . . . . |
|
DS9CREAT |
Format 9 DSCB built by create. |
| 4 (X'04') |
Character |
8 |
DS9JOBNAME |
Job name used to create the data set described
by its format 8 DSCB. Valid only when DS9CREAT is on (see offset 3
(X'03')) |
| 12 (X'0C') |
Character |
8 |
DS9STEPNAME |
Step name used to create the data set described
by its format 8 DSCB. Valid only when DS9CREAT is on (see offset 3
(X'03')) |
| 20 (X'12') |
Character |
6 |
DS9TIME |
Number of microseconds since midnight, local time,
that the data set described its format 8 DSCB was created. See creation
date field, DS1CREDT (offset 53(X'35')), for the date. Valid
only when DS9CREAT is on (see offset 3 (X'03')) |
| 26 (X'20') |
Character |
18 |
* |
Reserved. |
| 44 (X'2C') |
Character |
1 |
DS9FMTID |
Format identifier. |
| |
|
|
DS9IDC |
Constant value of X'F9' in DS9FMTID. |
| 45 (X'2D') |
Binary |
1 |
DS9NUMF3 |
Number of format 3 pointers that follow |
| 46 (X'2E') |
Binary |
50 |
DS9F3 |
Pointers to first to tenth format-3 DSCBs |
| The following five
bytes occur ten times. |
| 46 (X'2E') |
Binary |
5 |
DS9F3P |
First pointer to a format-3 DSCB |
| 46 (X'2E') |
Binary |
2 |
DS9F3CC |
Cylinder number in pointer to format-3 |
| 48 (X'30') |
Binary |
2 |
DS9F3HH |
Track number in pointer to format-3 |
| 50 (X'32') |
Binary |
1 |
DS9F3R |
Record number in pointer to format-3 |
| 96 (X'60') |
Character |
20 |
DS9ATRV1 |
Attribute bytes available for vendor use. See Vendor fields in
DS9ATRV!. |
| 116 (X'74') |
Character |
19 |
DS9ATRI2 |
Attribute fields, for future IBM® definition |
| End of the fields
that are unique to the format 9 subtype 1 DSCB. |
| 135 (X'87') |
Bitstring |
5 |
DS9PTRDS |
Pointer (CCHHR) to next format-9 DSCB, the first
format-3 DSCB or zero. |
| 135 (X'87') |
Binary |
2 |
DS9CCPTR |
Cylinder number in DSCB pointer |
| 138 (X'89') |
Binary |
2 |
DS9HHPTR |
Track number in DSCB pointer |
| 140 (X'8B') |
Binary |
1 |
DS9RPTR |
Record number in DSCB pointer |
| 140 (X'8C') |
|
|
DS9END |
|
| Vendor fields in
DS9ATRV1 in the format 9 DSCB z/OS® does
not enforce any rules on the content of the DS9ATRV1 field. It is
available for vendor products to set. IBM provides
the following recommendations:
Each vendor should store subfields
in the following format beginning at the leftmost byte:
|
| 0 (X'0') |
Character |
1 |
|
|
| |
xxxx .... |
|
|
Reserved |
| |
.... xxxx |
|
|
Number of bytes that follow this two-byte header.
Minimum value is 0000. |
| 1 (X'1') |
Character |
1 |
|
One-byte field containing a vendor identification
issued by IBM. |
| 2 (X'2') |
Character |
|
|
Beginning of variable-length field up to 15
bytes. |
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Copyright IBM Corporation 1990, 2014