Scsi Interface; Introduction; Scsi-2 Interface; Scsi Message Codes - Seagate STU62001LW Viper Product Manual

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SCSI interface

Introduction

SCSI-2 interface

SCSI message codes

This chapter summarizes the SCSI message codes, status codes and commands
used by the drive. Refer to chapter 3 for SCSI cabling and connection information.
Please refer to the L TO Tape Drive SCSI Interface Manual (part number 100109647)
for detailed developer information relative to SCSI implementation.
Viper 200 drives feature a multi-mode LVD and single-ended SCSI-2 interface. The
drive's SCSI-2 interface allows for communication between the host computer and
the tape drive. The Viper SCSI-2 interface conforms to requirements outlined in ANSI
X3.131, 1994. The drive also supports some SCSI-3 command extensions.
The SCSI-2 interface for the Viper 200 drive conforms with the ANSI X3.131 1994
standard. The following three tables list the message codes, status codes and
commands for this interface.
Code Description
00h Command Complete
02h Save Data Pointer
04h Disconnect
05h Initiator Detected Error
06h Abort
07h Message Reject
08h No Operation
0Ch Bus Device Reset
80h Identify (No Disconnect/Reconnect)
C0h Identify (Disconnect/Reconnect)
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01h Extended Message
03h Wide Data Transfer Request
1. Direction is defined as follows: In = Drive to Host; Out = Host to Drive
2. The Viper 200 drive supports only one Extended Message: Synchronous
Data Transfer Request
Viper 200 LTO Product Manual
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Direction
In
In
In
Out
Out
In/Out
Out
Out
In/Out
In/Out
In/Out
In/Out
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