| 0(0) |
4 |
DCBRELAD, DCBDCBE |
For partitioned data sets: DCBRELAD is TTRN (beginning
address) of a member. If the DCBHIAR bits at DCB offset 32 both are
on, this word points to the DCBE. If the DCBE exists, and the data
set is partitioned, member address is in DCBERELA in the DCBE. |
|---|
| 4(4) |
1 |
DCBKEYCN |
Keyed block overhead. |
|---|
| 5(5) |
8 |
DCBFDAD |
Direct access address. |
|---|
| 16(10) |
1 |
DCBKEYLE |
Key length of the data set. |
|---|
| 17(11) |
1 |
DCBDEVT |
Device type. |
|---|
| |
|
0010 .... |
Class of device. This code means DASD |
|---|
| |
|
.... xxxx |
Type of DASD. Programs that do not test this byte run in more
environments. If a program tests this byte, it is best to test only
the first four bits (class). |
|---|
| 18(12) |
2 |
DCBTRBAL |
Current track balance. For TRKCALC macro. Not recommended for
arithmetic calculation. |
|---|