IBM Tape Library Magstar 3494 - Manual (Page 334)

Table 32. HDR1
Bytes Description Use
0–2 Label Identifier Contains “HDR”
3 Label Number Contains “1”
4–20 Data Set Identifier Retained, Not checked
21–26 Data Set Serial Number Retained, Not checked
27–30 Volume Sequence Number Retained, Not checked
31–34 Data Set Sequence Number Retained, Not checked
35–38 Generation Number Retained, Not checked
39–40 Version Number Retained, Not checked
41–46 Creation Date Retained, Not checked
47–52 Expiration Date Retained, Not checked
53 Data Set Security Retained, Not checked
54–59 Block Count Must be “000000”
60–72 System Code Retained, Not checked
73–79 Reserved Retained, Not checked
Table 33. HDR2
Bytes Description Use
0–2 Label Identifier Contains “HDR”
3 Label Number Contains “2”
4 Record Format Retained, Not checked
5–9 Block Length Must be equal to the Record Length for the Export List File, Import List
File and Status File. Retained, not checked for the Reserved file.
10–14 Record Length Must be 80 bytes for the Export List File, Import List File and Status
file. Retained, not checked for the Reserved file.
15 Tape Density Retained, Not checked
16 Data Set Position Retained, Not checked
17–33 Job/Job Step Identification Retained, Not checked
34–35 Tape Recording Technique Retained, Not checked
36 Control Character Retained, Not checked
37 Reserved Retained, Not checked
38 Block Attribute Must be “000000”
39–46 Reserved Retained, Not checked
47 Checkpoint Data Set
Identifier Retained, Not checked
48–79 Reserved Retained, Not checked
312 Magstar 3494 Tape Library Operator Guide
|
| |
|||
|||
|||
|||
|||
|||
|||
|||
|||
|||
|||
|||
|||
|||
|||
|
| |
|||
|||
|||
|||
|||
|
|||
|
|||
|||
|||
|||
|||
|||
|||
|||
||
| |
|||