Quantum LTO-2 User Manual

Chapter 6  UNIX Settings
Configuring for SGI Irix

60

LTO-2 Half-Height Tape Drive User’s Guide

Configuring for SGI Irix

6

6

To properly attach SCSI devices to hosts it is necessary to ensure that each 

target device has a unique SCSI address. The command hinv can be used 

to find all attached SCSI controllers and target devices. To search for all 

SCSI controllers and devices use the command: 

The output of the command will be similar to the following: 

Integral SCSI controller 0: Version ADAPTEC 7880
Disk drive unit 1 on SCSI controller 0
CD ROM unit 4 on SCSI controller 0
Integral SCSI controller 1: Version ADAPTEC 7880
Tape drive: unit 6 on SCSI controller 1: DAT

This output shows that a tape drive is present on SCSI controller 1 at SCSI 

ID address #6. Available SCSI IDs are 
• 0,2,3,5 6, 8 - 15 on controller 0 
• 1 - 5 and 8 - 15 on controller 1 (this controller supports Wide/Ultra 

SCSI)     

6

To attach the LTO-2 Half-Height Tape Drive to IRIX the file .scsi. needs to 

be modified by a text editor. The file can be found in

Open the file and use the text editor to add the following at the end of the 

tape device entries: 
For

{DATTAPE, TPDAT, 8, 7, “CERTANCE”, “ULTRIUM 2”, 0, 0, {0},
MTCAN_BSF | MTCAN_BSR | MTCAN_APPEND | MTCAN_SETMK |
MTCAN_PREV | MTCAN_SYNC | MTCAN_SPEOD | MTCAN_CHKRDY | 
MTCAN_VAR | MTCAN_SETSZ | MTCAN_SILI | MTCAN_SEEK | 

SCSI ID #7 is almost always dedicated to the SCSI controller. 

Never configure your target device for ID 7 unless you are 

absolutely sure that the controller is not addressed for ID 7. 

See 

 on page 9  to view how to set the SCSI ID address 

jumpers for the LTO-2 Half-Height Tape Drive.