Configuring The Device Files - HP LTO-4 Technical Reference Manual

This produces output similar to the following:
106 780a0000
110 780b4000
For the adapter to which the new tape drive is attached, you need to determine what SCSI IDs
are already used.
Determine the SCSI IDs of existing devices attached to the SCSI controller:
2.
For all adapters:
# dmesg | egrep ".*xxx.*target" | sort | uniq
where xxx = the type of adapter (esp, glm, fas, qus or isp), as appropriate.
For example, for an ESP-based adapter:
# dmesg | egrep ".*esp.*target" | sort | uniq
This produces a list similar to:
sd0 at esp0: target 0 lun 0 sd6 at esp0: target 6 lun 0
This indicates that SCSI IDs 0 and 6 are used for existing devices. SCSI ID 7 is generally used for
the adapter itself. Here, you would choose a SCSI ID from 1 to 5 for the new tape drive.

Configuring the device files

Determine the device file by typing:
# ls -l /dev/rmt/*m | grep "st@X"
where X is the SCSI ID. Identify the line for the tape drive. For example, if the drive was at SCSI ID 2,
look for the line containing "st@2,0". This might be as follows (but on a single line):
lrwxrwxrwx 1 root root 63 Mar 1 00:00 /dev/rmt/0m
../../devices/sbus@1f,0/espdma@e,8400000/esp@e, 8800000/st@2,0:m
Here you could use /dev/rmt/0m (shown underlined above) as the device file.
For optimal performance, ensure that you have the following minimum patch number:
Solaris 8
Solaris 9
Solaris 10
a. Patch levels are liable to change every 6 months or so, so these
"minimum" levels may quickly become out-of-date.
Upgrading to the minimum patch level will ensure that the necessary support for officially supported
drives is included in the driver. You can view your existing patch level using the command
"uname -a". To access Solaris patch upgrades, you need to set up an Online Account with Sun.
For additional information on changes to Solaris 8, 9 and 10 Software Update access, see
SunSolve InfoDoc #83061 at
http://sunsolve.sun.com/search/document.do?assetkey=1-9-83061-1
32 Sun (Solaris 8, 9, 10) servers and workstations
102b3 50 1 glm (GLM SCSI HBA Driver)
1272c 228 1 qus (isp10160 HBA Driver)
Minimum patch
108725-13
Generic_122300-03
Generic_118822-30
a