Table 1 shows the DADSM volume list mapped by IGGDAVLL.
Table 1. DADSM
Volume List (Mapped by IGGDAVLL)| Offset |
Length or Bit Pattern |
Name |
Description |
|---|
| 00 (X'00') |
16 |
IGGDAVLL |
DADSM volume list |
| 00 (X'00') |
16 |
DAVLLHDR |
Volume list header |
| 00 (X'00') |
8 |
DAVLLID |
ID = 'IGGDAVLL' |
| 08 (X'08') |
2 |
DAVLVER |
Version of volume list |
| 10 (X'0A') |
2 |
DAVLLEN |
Length of volume list header |
| 12 (X'0C') |
1 |
DAVLKEY |
Key of volume list |
| xxxx .... |
DAVLSKEY |
Storage key of parameter list |
| 13 (X'0D') |
1 |
|
Reserved |
| 14 (X'0E') |
2 |
DAVCOUNT |
Number of volumes |
| 16 (X'10') |
12 |
DAVLVOLE |
Volume entries; number = DAVCOUNT |
| 16 (X'10') |
4 |
DAVLUCBT |
Device type |
| 20 (X'14') |
6 |
DAVLVOLS |
Volume serial number |
| 26 (X'1A') |
1 |
DAVLSSTC |
Secondary status byte |
| 27 (X'1B') |
1 |
DAVLSTAT |
Scratch or rename status byte |
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