| 0 (0) |
1 |
Orientation sequence number. |
| 1 (1) |
1 |
Flag byte 1. |
| |
1... .... |
At least one SILI bit on. |
| |
.1.. .... |
At least one suspend bit on. |
| |
..1. .... |
At least one PCI. |
| |
...1 .... |
At least one skip bit on. |
| |
.... 1... |
Read record zero or read home address. |
| |
.... .1.. |
Reserved. |
| |
.... ..1. |
Read multiple CKD or track. |
| |
.... ...1 |
At least one erase CCW. |
| 2 (2) |
1 |
Flag byte 2. |
| |
1... .... |
End of file read or written. |
| |
.1.. .... |
At least one format write. |
| |
..1. .... |
This record is for an FCX (zHPF) channel program |
| 3 (3) |
1 |
Count of erase, read MCKD. |
| 4 (4) |
2 |
Number of blocks read. |
| 6 (6) |
2 |
Number of blocks written. |
| 8 (8) |
4 |
Number of bytes read. |
| 12 (C) |
4 |
Number of bytes written. |
| 16 (10) |
2 |
Number of data chain CCWs. |
| 18 (12) |
2 |
Number of COM chain CCWs. |
| 20 (14) |
1 |
External global attribute. |
| |
11.. .... |
'11' (only allowed value). |
| |
..1. .... |
CKD conversion mode. |
| |
...1 .... |
Subsystem operation mode. |
| |
.... ..1. |
Cache fast write. |
| |
.... ...1 |
Inhibit DASD fast write. |
| 21 (15) |
1 |
External global attribute extended. |
| 22 (16) |
4 |
External end of extent CCH. |
| 26 (1A) |
1 |
Seek/locate code. |
| 27 (1B) |
5 |
CCHHR (search ID equal). |
| 32 (20) |
1 |
Operation code from locate parameter. |
| 33 (21) |
1 |
Sector number from parameter. |
| 34 (22) |
1 |
Extended operation code. |
| 35 (23) |
2 |
Extended parameters. |