User's Guide

Configuration for Novell and UNIX Operating System Configuration

Irix V6.x through V6.5

To configure Irix 6.x-6.5 to use a DAT 72 or DDS-4 autoloader, you must modify the files /var/

sysgen/master.d/scsi and /dev/MAKEDEV.d/TPS_base, as described below. After

modifying these files you must rebuild the kernel.

1. Edit the file /var/sysgen/master.d/scsi and add one of the following entries,

depending on your version of Irix:

Irix V6.x through V6.4:

{ DATTAPE, TPDAT, 7, 3, “ARCHIVE Python”,“DAT”/*DAT*/, 0, 0, {0},

/* This drive uses mode select page 0xf for compression control;

* most of the other drives supporting compression use page 0x10 */

MTCAN_SILI|MTCAN_SEEK|MTCAN_CHTYPEANY|MTCAN_COMPRESS,

/* minimum delay on i/o is 12 minutes, to allow the Drives

* full error recovery sequence to be performed. */

40, 12*60, 12*60, 12*60, 512, 512*512, 0, (u_char *)0 },

Irix V6.5:

{ DATTAPE, TPDAT, 7, 3, “ARCHIVE Python”,“DAT”/*DAT*/, 0, 0, {0},

/* This drive uses mode select page 0xf for compression control;

* most of the other drives supporting compression use page 0x10 */

MTCAN_SILI|MTCAN_SEEK|MTCAN_CHTYPEANY|MTCAN_COMPRESS,

/* minimum delay on i/o is 12 minutes, to allow the Drives

* full error recovery sequence to be performed. */

40, 12*60, 12*60, 12*60, 512, 512*512,

tpsc_default_dens_count, tpsc_default_hwg_dens_names,

tpsc_default_alias_dens_names,

{0},0,0,0,

0, (u_char *)0 },

2. Edit the file /dev/MAKEDEV.d/TPS_base and make the following modification (this

modification is not required on systems running IRIX 6.4 or 6.5).

Locate the area of code that deals with DAT drives. This starts with:

*Drive?type:*DAT*

Then insert the following text before or after the similar entries for other supported devices:

*Device:*DAT*06240*) # DAT drive with compression

mdev=`expr $mdev + 8`;

mknod ${prf}$1c c ${C_TPS} $mdev;

;;

3. Restart the system. Irix 6.x will detect the changes made and automatically rebuild the kernel

on startup.

Alternatively, you could manually rebuild the kernel using the autoconfig command (see the

autoconfig man page for details), then reboot the system again.