User's Guide
Page 34 DDS-4 SCSI Interface Manual, Rev. B
Commands
Introduction
This chapter describes the SCSI commands for the Seagate DDS-4 and DAT 72
tape drives.
Command Reference List
This chapter describes the implementation of the ANSI SCSI command
specifications. The following table lists the commands numerically by opcode.
Commands specific for the AutoLoader are noted.
Code SCSI-2 Autoloader Command
00h
X
TEST UNIT READY
01h
X
REWIND
02h
X
REQUEST BLOCK ADDRESS
03h
X
REQUEST SENSE
05h
X
READ BLOCK LIMITS
07h
X
X
INITIALIZE ELEMENT STATUS
08h
X
READ
0Ah
X
WRITE
0Ch
X
SEEK BLOCK
10h
X
WRITE FILEMARKS
11h
X
SPACE
12h
X
INQUIRY
13h
X
VERIFY
15h
X
MODE SELECT
16h
X
RESERVE UNIT
17h
X
RELEASE UNIT
19h
X
ERASE
1Ah
X
MODE SENSE
1Bh
X
LOAD/UNLOAD
1CH
X
RECEIVE DIAGNOSTIC RESULTS
1Dh
X
SEND DIAGNOSTIC
1Eh
X
PREVENT/ALLOW MEDIUM REMOVAL
2Bh
X
LOCATE
34h
X
READ POSITION
3Bh
X
WRITE DATA BUFFER
3Ch
X
READ DATA BUFFER
4Ch
X
LOG SELECT
4Dh
X
LOG SENSE
44h REPORT DENSITY SUPPORT
A5h
X
X
MOVE MEDIUM
A6h
X
X
EXCHANGE MEDIUM
B8H
X
X
READ ELEMENT STATUS
3