Record descriptor section
The SMF header section is immediately followed by the DB2 Manager record descriptor section. It has a fixed length of 38 bytes.
Offset | Length | Format | Description |
|
|
|
|
18 | 6 | bin | Reserved. |
24 | 4 | bin | Offset of database section. This is the |
|
|
| offset from the start of the SMF record |
|
|
| of the database section of the record. |
28 | 2 | bin | Length of database section. This is the |
|
|
| length in bytes of a single database |
|
|
| section. |
30 | 2 | bin | The number of database sections |
|
|
| present in the record (always = 1). |
32 | 4 | bin | Offset of request section. This is the |
|
|
| offset from the start of the SMF record |
|
|
| of the first request section in the record. |
36 | 2 | bin | Length of request section. This is the |
|
|
| length in bytes of a single section. This |
|
|
| will always be 96 bytes. |
38 | 2 | bin | The number of request sections |
|
|
| present in the record. |
40 | 16 | - | Reserved for future use. |
|
|
|
|
Database section
The storage group section starts at the offset specified in the record descriptor section of the DB2 Manager SMF record. It gives information about the database being processed for object storage or retrieval. It has a fixed length of 24 bytes. Only one database group section will be present per SMF record.
Offset
0
Length
1
Format | Description |
|
|
Char | DB2 Manager task issuing request: |
| ’T’ – tape reader task |
| ’D’ – disk reader task |
| ’W’ – tape writer task |
|
|
66 | DB2 Manager User Guide |
| StorageTek Proprietary |
