StorageTek 312564001 User Manual

 

66 

DB2 Manager User Guide 

 StorageTek 

Proprietary 

The SMF header section is immediately followed by the DB2 Manager record 
descriptor section. It has a fixed length of 38 bytes. 

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. 

 

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. 

0 

1 

Char 

DB2 Manager task issuing request: 
’T’ – tape reader task 
’D’ – disk reader task 
’W’ – tape writer task