User Guide

Ampex 1308911-02 xi

DST/DIS Tape Drive UNIX Programmer’s Guide Contents

3.3 DD-2 Tape Entities .........................................................................................3-1

3.4 DD-2 Format Types .......................................................................................3-2

3.4.1 System Zones..............................................................................................3-3

3.4.2 Partitions.....................................................................................................3-3

3.4.3 File Sections ...............................................................................................3-4

3.4.4 Data Blocks.................................................................................................3-4

3.5 Instrumentation and Data Storage Recording ................................................3-5

Section 4 Tape Drive Operational Characteristics

4.1 Introduction ....................................................................................................4-1

4.2 Tape Drive Block Size ...................................................................................4-3

4.3 Tape Partitions ................................................................................................4-3

Section 5 libdd2 API Functions

5.1 Introduction ....................................................................................................5-1

5.2 DST API Overview ........................................................................................5-1

5.2.1 libdd2 Functions Summary.........................................................................5-1

5.2.2 Position Specifications ...............................................................................5-2

dst_position_st........................................................................................5-2

dst_pos_type_en.....................................................................................5-3

dst_position_un ......................................................................................5-3

dst_pos_tok_t..........................................................................................5-4

dst_dd2_pos_st.......................................................................................5-4

dst_600_pos_st Structure .......................................................................5-5

dst_dis_pos_st Structure.........................................................................5-6

5.2.3 Return Values .............................................................................................5-7

5.2.4 See Also....................................................................................................5-11

5.3 dst_clrlog ......................................................................................................5-12

5.4 dst_convpos ..................................................................................................5-13

5.5 dst_format .....................................................................................................5-16

5.6 dst_getdrive ..................................................................................................5-22

5.7 dst_getdrive_ex ............................................................................................5-26

5.8 dst_getlog .....................................................................................................5-31

5.9 dst_getparam ................................................................................................5-35

5.10 dst_getpos .....................................................................................................5-38

5.11 dst_getstate ...................................................................................................5-40

5.12 dst_gettrace ...................................................................................................5-42

5.13 dst_reset ........................................................................................................5-45

5.14 dst_rewind ....................................................................................................5-46

5.15 dst_setdrive ...................................................................................................5-47

5.16 dst_setparam .................................................................................................5-51

5.17 dst_setpos .....................................................................................................5-54

5.18 dst_space ......................................................................................................5-57

5.19 dst_status ......................................................................................................5-59

5.20 dst_unload ....................................................................................................5-63