Quantum LTO-2 manual Configuring, Device File, St.conf

Chapter 6 UNIX Settings

Configuring for the Sun Environment (Solaris 2.4, 2.5, 2.6, 7, 8, and 9)

We recommend that the LTO-2 Half-Height Tape Drive not be attached to esp controllers. This controller is not fast enough to work with the LTO-2 Half-Height Tape Drive. The minimum recommended controller would be a glm controller, which is an Ultra Wide controller.

We recommend Ultra3 SCSI-capable controllers capable of 160MB/s data transfer as a minimum. Slow backups will result if using slower SCSI controllers.

Configuring the	To configure Solaris 2.4 and above to use the LTO-2 Half-Height Tape
Device File	Drive correctly, add the following lines to the file st.conf in the directory /
st.conf	kernel/drv.
	tape-config-list=
	“CERTANCEULTRIUM 2”, “Seagate LTO 2”, ”Certance_LTO2”;
		Note: The last entry in this section must end with a semicolon
		• Certance LTO2 = 1,0x3b,0,0x1d639,4,0x,00,0x00,0x00,0x00,0,1;
	The value 0x1d639 equates to the way that the LTO-2 Half-Height Tape
	Drive is configured to operate in the Solaris environment. This value
	enables the LTO-2 Half-Height Tape Drive to:
	Support variable length records (variable length block size)
	•	Backspace over files (same as .mt bsf. command to backspace over
		file marks)
	•	Backspace over records (same as .mt bsr., backspace over
		individual tape blocks)
	• Long time-out for long erase function (it is not recommended to try
		and erase the entire tape)
	• LTO-2 Half-Height Tape Drive knows when end of data has been
		encountered
	• Device driver is unloadable
	• Long timeouts (5 times longer than normal)
	•	Buffered writes supported
	• Variable record size not limited to 64k

LTO-2 Half-Height Tape Drive User’s Guide 53