DLT2000 SCSI Interface
8-8 DLT2000/DLT2700 Cartridge Tape Subsystem
8.3 SCSI Message System
The message system allows communication between an initiator and a target for the
purpose of physical path management.
To support certain SCSI-1 initiators, an Identify message is not required by the
DLT2000. If a message is sent by the initiator after the SELECTION phase, it should
be an IDENTIFY, ABORT, or BUS DEVICE RESET message. If the DLT2000
receives any other message in this case, it will go directly to BUS FREE phase.
The following messages are supported:
Table 8-1
Supported SCSI Messages
Code
In/Out Description
Section
06
Out
ABORT
ABORT (06h)
0D
Out
ABORT TAG
ABORT TAG (0Dh)
0C
Out
BUS DEVICE RESET
BUS DEVICE RESET (0Ch)
0E
Out
CLEAR QUEUE
CLEAR QUEUE (0Eh)
00
In
COMMAND COMPLETE
COMMAND COMPLETE (00h)
04
In
DISCONNECT
DISCONNECT (04h)
01
Both EXTENDED MESSAGE (SDTR
only and wide Data Transfer
Request-See note)
ExtENDED MESSAGE (01h)
08-FF
Both IDENTIFY
IDENTIFY (80h-FFh)
05
Out
INITIATOR DETECTED
ERROR
INITIATOR DETECTED ERROR
(05h)
0A
In
LINKED COMMAND
COMPLETE
LINKED COMMAND COMPLETE
(0Ah)
0B
In
LINKED COMMAND
COMPLETE w/flag
LINKED COMMAND COMPLETE,
with flag (0Bh)
09
Out
MESSAGE PARITY ERROR
MESSAGE PARITY ERROR (09h)
07
Both MESSAGE REJECT
MESSAGE REJECT (07h)
08
Out
NO-OP
NO-OP ( NO OPERATION)(08h)
03
In
RESTORE POINTERS
RESTORE POINTERS (03h)
02
In
SAVE DATA POINTER
SAVE DATA POINTER (02h)
Summary of Contents for DLT 2500
Page 18: ...Table of Contents xviii DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...
Page 20: ...Revision History xx DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...
Page 146: ...Firmware Update From Tape 7 18 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...
Page 291: ...DLT2000 SCSI Interface DLT2000 DLT2700 Cartridge Tape Subsystem 8 145 ...
Page 327: ...Sense Key Information C 6 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...
Page 345: ...Index 8 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...