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Fibre Channel Interface Support, Table 6, Message, Direction, Description

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Table 6 Supported SCSI Messages (Continued) Message RESTORE POINTERS DISCONNECT INITIATOR DETECTED ERROR ABORT MESSAGE REJECT NO-OP MESSAGE PARITY ERROR BUS DEVICE RESET IDENTIFY Code 03h 04h 05h 06h 07h 08h 09h 0Ch 80hFFh Direction In In Out Out Both Out Out Out Both Description This message is sent from the target to direct the initiator to continue sending data. This message is sent by the target to inform an initiator that the present data transfer will be suspended. The target will reselect the initiator at a later time to continue the current operation. This message is sent from an initiator to inform the target that an error occurred. This allows the target to retry the operation. This message is sent from the initiator to the target to clear the current or pending operation. The target goes directly to the BUS FREE phase after successful receipt of this message. This message is sent from the initiator or target to indicate that the last message received was inappropriate or not implemented. This message is sent from the initiator to inform the target that no message is valid in response to the target request for a message. This message is sent from the initiator to the target to indicate that one or more bytes in the last message received contained a parity error. This message is sent from an initiator to clear all commands, data, and status at the target. When the target recognizes this message, it aborts the command currently being executed and proceeds to the BUS FREE state. These messages are sent either by the initiator or by the target to establish (or re-establish) the logical connection path (nexus) between an initiator and target for a particular logical unit. Fibre Channel Interface Support The library Fibre Channel ports can be N_Ports for point-to-point topologies or NL_Ports for arbitrated loop topologies. Only Class 3 service is supported. Private arbitrated loops are supported if the library is not attached to a Fibre Channel fabric, and public arbitrated loops are supported if the library is attached to a Fibre Channel fabric. 8 SCSI Command Support

Section	Page
Contents	3
Tables	7
SCSI Command Support	11
Device Model	11
Controller Device Commands and Parameters	12
Media Changer Commands and Parameters	13
General Command Support Behavior	15
Multiple Initiator Support	15
Element Addressing	15
Command Status	15
Unit Attentions	16
Resets	16
Common CDB Fields	16
Reserved Fields	17
Online/Offline Operation	17
Supported Interfaces	17
SCSI Parallel Interface Support	17
Supported Messages	17
Fibre Channel Interface Support	18
Logical Libraries	19
Mailbox Behavior	19
Autocleaning	19
Removed Drives	20
SCSI Commands	21
Initialize Element Status - 07h	21
What the Library Does With This Command	21
Command Usage	21
Initialize Element Status CDB Format	22
Initialize Element Status With Range - E7h	23
What the Library Does With This Command	23
Command Usage	23
Initialize Element Status With Range CDB Format	23
Inquiry - 12h	25
What the Library Does With This Command	25
Command Usage	25
Inquiry CDB Format	25
Standard Inquiry Response	26
Vital Product Data Pages	27
Supported Vital Product Data Page (00h)	28
Unit Serial Number Page (80h)	29
Device Identification Page (83h)	30
Log Sense - 4Dh	34
What the Library Does with This Command	34
Command Usage	34
Log Sense CDB Format	34
Log Sense Response	35
Log Page Format	35
Supported Log Page (00h)	37
Tape Alert Log Page (2Eh)	37
Mode Select (6) - 15h	39
What the Library Does With This Command	39
Command Usage	39
Mode Select (6) CDB Format	39
Mode Parameter Header	40
Mode Select (10) - 55h	41
What the Library Does With This Command	41
Command Usage	41
Mode Select (10) CDB Format	41
Mode Parameter Header	42
Mode Sense (6) - 1Ah	43
What the Library Does With This Command	43
Command Usage	43
Mode Sense (6) CDB Format	43
Mode Sense (6) Response	44
Mode Parameter Header	44
Mode Sense (10) - 5Ah	45
What the Library Does With This Command	45
Command Usage	45
Mode Sense (10) CDB Format	45
Mode Sense (10) Response	46
Mode Parameter Header	46
Mode Pages	47
Disconnect-Reconnect Page (02h)	48
Fibre Channel Logical Unit Control Page (18h)	49
Fibre Channel Port Control Page (19h)	50
Informational Exceptions Control Page (1Ch)	51
Element Address Assignment Page (1Dh)	53
Transport Geometry Parameters Page (1Eh)	54
Device Capabilities Page (1Fh)	55
All Mode Pages (3Fh)	55
Move Medium – A5h	56
What the Library Does With This Command	56
Command Usage	56
Move Medium CDB Format	57
Persistent Reserve In – 5Eh	58
What the Library Does With This Command	58
Command Usage	58
Persistent Reserve In CDB Format	58
Persistent Reserve In Response	58
Read Keys Response	59
Read Reservations Response	60
Persistent Reserve Out – 5Fh	61
What the Library Does With This Command	61
Command Usage	61
Persistent Reserve Out CDB Format	61
Position to Element – 2Bh	63
What the Library Does With This Command	63
Command Usage	63
Position to Element CDB Format	63
Prevent Allow Medium Removal – 1Eh	64
What the Library Does With This Command	64
Command Usage	64
Prevent Allow Medium Removal CDB Format	64
Read Buffer – 3Ch	65
What the Library Does With This Command	65
Command Usage	65
Read Buffer CDB Format	65
Read Buffer Response	66
Read Element Status – B8h	68
What the Library Does With This Command	68
Command Usage	68
Read Element Status CDB Format	68
Read Element Status Response	70
Element Status Header	70
Element Status Page	71
Element Descriptors	71
Primary Volume Tag Field	72
Medium Transport Element Descriptor	72
Storage Element Descriptor	73
Import/Export Element Descriptor	74
Data Transfer Element Descriptor	75
Release Element – 17h	77
What the Library Does With This Command	77
Command Usage	77
Release Element CDB Format	77
Report LUNS – A0h	78
What the Library Does With This Command	78
Command Usage	78
Report LUNS CDB Format	78
Report LUNS Response	79
Request Sense – 03h	80
What the Library Does With This Command	80
Command Usage	80
Request Sense CDB Format	80
Request Sense Response	81
Additional Sense Codes and Qualifiers	82
Reserve Element - 16h	86
What the Library Does With This Command	86
Command Usage	86
Reserve Element CDB Format	86
Send Diagnostic - 1Dh	87
What the Library Does With This Command	87
Command Usage	87
Send Diagnostic CDB Format	87
Test Unit Ready (00h)	88
What the Library Does With This Command	88
Command Usage	88
Test Unit Ready CDB Format	88
Write Buffer (3Bh)	89
What the Library Does With This Command	89
Command Usage	89

Match case Limit results 1 per page

SCSI Command Support

Fibre Channel Interface Support

The library Fibre Channel ports can be N_Ports for point-to-point topologies or NL_Ports for arbitrated loop

topologies. Only Class 3 service is supported. Private arbitrated loops are supported if the library is not

attached to a Fibre Channel fabric, and public arbitrated loops are supported if the library is attached to a

Fibre Channel fabric.

RESTORE POINTERS

03h

This message is sent from the target to direct the

initiator to continue sending data.

DISCONNECT

04h

This message is sent by the target to inform an

initiator that the present data transfer will be

suspended. The target will reselect the initiator at a

later time to continue the current operation.

INITIATOR DETECTED

ERROR

05h

Out

This message is sent from an initiator to inform the

target that an error occurred. This allows the target

to retry the operation.

ABORT

06h

Out

This message is sent from the initiator to the target

to clear the current or pending operation. The

target goes directly to the BUS FREE phase after

successful receipt of this message.

MESSAGE REJECT

07h

Both

This message is sent from the initiator or target to

indicate that the last message received was

inappropriate or not implemented.

NO-OP

08h

Out

This message is sent from the initiator to inform the

target that no message is valid in response to the

target request for a message.

MESSAGE PARITY

ERROR

09h

Out

This message is sent from the initiator to the target

to indicate that one or more bytes in the last

message received contained a parity error.

BUS DEVICE RESET

0Ch

Out

This message is sent from an initiator to clear all

commands, data, and status at the target. When

the target recognizes this message, it aborts the

command currently being executed and proceeds

to the BUS FREE state.

IDENTIFY

80h-

FFh

Both

These messages are sent either by the initiator or

by the target to establish (or re-establish) the

logical connection path (nexus) between an initiator

and target for a particular logical unit.

Table 6

Supported SCSI Messages

(Continued)

Message

Code

Direction

Description