ANSI INCITS 290 : 1997

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions and Conventions
   3.1 Definitions
   3.2 Conventions
4 Logical interface characteristics of the tape
   4.1 PhysicalBlocks (4.4.1 of X3.291:199x)
   4.2 DataBlocks (4.4.2 of X3.291:199x)
   4.3 Extents (4.4.3 of X3.291:199x)
   4.4 Partitions (4.4.4 of X3.291:199x)
   4.5 Alternate data areas (4.4.5 of X3.291:199x)
   4.6 Partition parameters (4.6.7 of X3.291:199x)
   4.7 Block numbering
   4.8 Data buffer operation
   4.9 Positioning
   4.10 Attributes usage
   4.11 Command usage
5 Message packet structure
6 Control commands
   6.1 NOP
   6.2 FACILITY OPERATION
   6.3 ATTRIBUTES
   6.4 REPORT ADDRESSEE STATUS
   6.5 PORT ADDRESS
   6.6 PATH CONTROL
   6.7 ATTENTION CONTROL
   6.8 OPERATING MODE
   6.9 ABORT
   6.10 ACCESS PERMITS
   6.11 RESUME
   6.12 PORT RESPONSE
   6.13 ANTICIPATED ACTION
   6.14 OPERATOR DISPLAY
7 Position commands
   7.1 SPACE BLOCK/FILE MARK
   7.2 POSITION CONTROL
   7.3 REPORT POSITION
   7.4 RECORD POSITION
   7.5 Reserved
8 Transfer commands
   8.1 READ
   8.2 READ RAW DATA
   8.3 Reserved
   8.4 SEARCH
   8.5 WRITE
   8.6 WRITE PATTERN
   8.7 Reserved
9 Combination commands
   9.1 COPY
   9.2 COMPARE SLAVE DATA
   9.3 COMPARE DATA
   9.4 Reserved
   9.5 Reserved
   9.6 SHADOW READ
   9.7 SHADOW WRITE
   9.8 SHADOW RESTORE
10 Other transfer commands
   10.1 READ VERIFY
   10.2 Reserved
   10.3 READ FROM BUFFER
   10.4 READ FACILITY DATA TO BUFFER
   10.5 READ PHYSICAL DATA AND ECC
   10.6 READ PHYSICAL HEADER
   10.7 READ IPL
   10.8 READ PHYSICAL HEADER AND ECC
   10.9 WRITE TO BUFFER
   10.10 WRITE BUFFER TO FACILITY
   10.11 WRITE PHYSICAL DATA AND ECC
   10.12 WRITE PHYSICAL HEADER
   10.13 LOAD SLAVE IML
   10.14 ERASE
   10.15 WRITE PHYSICAL HEADER AND ECC
11 Diagnostic Commands
   11.1 PERFORM SLAVE DIAGNOSTICS
   11.2 PERFORM FACILITY DIAGNOSTICS
   11.3 Reserved
   11.4 Reserved
   11.5 READ ERROR LOG
   11.6 WRITE ERROR LOG
   11.7 DIAGNOSTIC CONTROL
12 Command summary
   12.1 Control commands
   12.2 Position commands
   12.3 Transfer commands
   12.4 Combination commands
   12.5 Other transfer commands
   12.6 Diagnostic commands
Annex
A Overview: interface levels, concepts, and application
   environments
   A.1 Interface levels
   A.2 Concepts
   A.3 Application environments

Covers the Logical Level 3 (generic level) Interface for tape drives. The purpose is to facilitate the development of an intelligent interface which allows interconnection of multiple peripherals, such as tape, disk, communications, to a controller.