M2488 PRODUCT GUIDE
SCSI MESSAGES
April 1997
CG00000-011503 REV. A
3-1
CHAPTER 3
SCSI MESSAGES
3-1
INTRODUCTION
Chapters 3 through 6 are the Host Interface Specification for the M2488.
This chapter describes the messages for the M2488 tape drive and the medium changers. The following
information is located in this chapter:
3-2 M2488 TAPE AND MEDIUM CHANGER SCSI MESSAGES
3-2
M2488 TAPE AND MEDIUM CHANGER SCSI MESSAGES
Table 3-1 describes the SCSI messages used with the M2488. For more detailed information on the
SCSI message, refer to the paragraph listed in the PARAGRAPH column.
Table 3-1. M2488 SCSI Messages
CODE
MESSAGE
DESCRIPTION
PARAGRAPH
00h
COMMAND COMPLETE
Indicates the execution of a command has termi-
nated and valid status was sent to the initiator.
01h
EXTENDED MESSAGE
Sent as the first byte of a multiple-byte message.
02h
SAVE DATA POINTER
Directs the initiator to save a copy of the present
active data pointer for the currently attached log-
ical unit.
03h
RESTORE POINTERS
Restores the most recently saved pointers (for the
currently attached logical unit) to the active state.
04h
DISCONNECT
Informs the initiator that the present physical
path is going to be broken.
05h
INITIATOR DETECTED ERROR
Informs a target an error has occurred.
06h
ABORT
Sent to the target to clear the present operation.
07h
MESSAGE REJECT
Indicates the last message received was inappro-
priate or was not implemented.
08h
NO OPERATION
Sent in response to a target’s request for a mes-
sage when the initiator does not currently have
any other valid message to send.
09h
MESSAGE PARITY ERROR
Indicates one or more bytes in the last message,
received by the initiator, had a parity error.
0Ah
LINKED COMMAND COM-
PLETE
Indicates to the initiator that the completion and
execution of a linked command and status was
sent.
0Bh
LINKED COMMAND COM-
PLETE (with flag)
Indicates to the initiator that the completion and
execution of a linked command with the flag bit
set to 1 and status was sent.
Содержание M2488
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Страница 57: ...M2488 PRODUCT GUIDE INSTALLATION INSTRUCTIONS April 1997 CG00000 011503 REV A 1 31 Figure 1 25 Replace Covers ...
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Страница 366: ...MAINTENANCE AND SERVICING M2488 PRODUCT GUIDE 8 56 CG00000 011503 REV A April 1997 ...
Страница 374: ...SENSE KEYS M2488 PRODUCT GUIDE A 2 CG00000 011503 REV A April 1997 ...
Страница 480: ...DIAGNOSTIC TESTS AND ERROR CODES M2488 PRODUCT GUIDE F 80 CG00000 011503 REV A April 1997 ...
Страница 522: ...INDEX M2488 PRODUCT GUIDE Index 8 CG00000 011503 REV A April 1997 ...
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