Chapter 6 UNIX Settings

Configuring for SGI Irix

Configuring for SGI Irix

Finding Current

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

SCSI Controllers

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

and Targets

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

 

SCSI controllers and devices use the command:

 

hinv –v grep SCSI

 

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)

Note: 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 figure 2 on page 9 to view how to set the SCSI ID address jumpers for the LTO-2 Half-Height Tape Drive.

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

Configuration File be modified by a text editor. The file can be found in /var/sysgen/master.d. Open the file and use the text editor to add the following at the end of the tape device entries:

For IRIX 6.4/6.5

{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

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

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Quantum LTO-2 manual Configuring for SGI Irix, Scsi controllers and devices use the command