Seagate 240 DDS-4 manual Configuration for the SGI environment, Setting Irix

Scorpion 240 Autoloader Installation Manual A-47

Configuration for the SGI environment

Dip switch settings

Before using the Scorpion 240 in a SGI UNIX environment, make sure that the dip switches are as shown below:

	Switch 5	Switch 6	Switch 7	Switch 8
Setting	ON	ON	ON	ON

Note:

Irix V5.x

The main difference between tape drive support in Irix 5.x and 6.x is the introduction for Data Compression switching via software in Irix version 6.2. When running Irix 5.x, the drive will always operate in the compression setting determined by switch 6 on the bottom of the drive (off=compression enabled (default), on=compression disabled).

To configure Irix 5.x to use the Scorpion 240, you must modify the file /var/sysgen/master.d/scsi as described below:

1.Edit the file /var/sysgen/master.d/scsi and add the following entry:

{DATTAPE,TPDAT,7,12,"SEAGATE","DAT 06240"/*DAT*/,0,0,{0,0,0,0},

MTCAN_BSFMTCAN_BSRMTCAN_APPENDMTCAN_SETMKMTCAN_PARTMTCAN_PREV MTCAN_SYNCMTCAN_SPEODMTCAN_CHKRDYMTCAN_VARMTCAN_SETSZ MTCAN_SILIMTCAN_SEEKMTCAN_CHTYPEANY,

/* 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 },

Note: The string above contains four spaces between the word DAT and the value 06240.

2.Rebuild the kernel using the autoconfig command (see the autoconfig man page for details ). After the kernel is rebuilt you will need to reboot the system again to bring the changes into effect.