Quantum LTO-2 - Manual (Page 67)

Chapter 6 UNIX Settings
Configuring for the Sun Environment (Solaris 2.4, 2.5, 2.6, 7, 8, and 9)
LTO-2 Half-Height Tape Drive User’s Guide 53
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
Device File
st.conf
6
To configure Solaris 2.4 and above to use the LTO-2 Half-Height Tape
Drive correctly, add the following lines to the file
st.conf
in the directory
/
kernel/drv
.
tape-config-list=
“CERTANCEULTRIUM 2”, “Seagate LTO 2”, ”Certance_LTO2”;
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
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;