Quantum DLT1SOLARISSPARC2X User Manual

DLT™ TAPE UNIT INSTALLATION

Sun® SPARCstation™

Solaris® 2.X

Installation

Instructions will cover the installation of the DLT tape peripheral hardware and configuration of the system
to communicate with the DLT tape peripheral. The Solaris system must have the appropriate SCSI interface
for DLT drive to attached to, i.e., a SCSI single-ended DLT drive can be attached only to a SCSI single­ended interface. The same is true for SCSI differential attachment. Solaris includes a driver to efficiently
communicate with SCSI tape drives, such as the DLT tape peripheral.

Perform the installation as follows:

• Shut down the SPARCstation and remove ac power from the system. Install the

DLT tape peripheral and connect it to its SCSI controller. Refer to the following
manual for switch and jumper settings and SCSI bus termination:

• DLT1/DLT7 Install and Operations Guide

Set the DLT SCSI device address to an unassigned ID.

• Turn power on and execute a 'probe-scsi' command. The system response should

indicate that the DLT device is attached and from that you can verify the DLT
SCSI ID setting.

• Boot the system and log in as root.

• Change directory to /kernel/drv.

• Edit the st.conf file by adding the following before the first occurrence of name=

in the file:

tape-config-list = "<DLT tape unit>", "<DLT reference name>", "<DLT

data>"

;

•

tape-config-list is a variable defined by a series of tape configuration parameters
listed below:

• <DLT tape unit> is the vendor and product ID string for the DLT device.

Depending on the DLT tape peripheral you are installing, you must insert the
appropriate vendor and product ID for <DLT tape unit> as described in the
following table:

DLT Tape Product

<DLT tape unit>

DLT 1 Q UANTUM DLT7000

Total string character count, including spaces, must equal 15.

• <DLT reference name> is a name you select that the system will use to identify

the DLT device. This reference does not change the DLT product ID. When the
system boots, the reference name will be displayed in the list of peripheral devices
recognized by the system.

<DLT data> is a variable containing a series of additional DLT device configuration information. You
select a name in place of the <DLT data> string.
You will continue editing the st.conf file by defining the name you selected for <DLT data>. The
definition depends on the DLT tape peripheral you are installing.
For a DLT1 series unit add the following line:

<DLT data> = 1, 0x36, 0, 0x8639, 4, 0x40, 0x86, 0x87, 0x7f, 0;

• <DLT data>contains 10 parameters and are described following:

• The first parameter, 1, is the version number and should not change.

• The second parameter, 0x36, designates the DLT tape type as "other SCSI drive".

This is defined in /usr/include/sys/mtio.h.

• The third parameter, 0, is the block size. Since the DLT tape drive uses variable

block size, this value should be zero.

• The fourth parameter, 0x8639, is a summation of values that represent selected

device options. The table below lists the options and the corresponding value:

ST_ VARIABLE 0 x0001

ST_BS F 0 x0008

ST_BSR

ST_ LONG_ERASE 0 x0020

ST_K NOWS_EOD 0 x0200

ST_U NLOADABLE 0 x0400

ST_NO_ RECSIZE_LIMIT 0 x8000

0

Option

Value

x0010

The st man page has more information about these and other possible device options. For certain
applications, it may be necessary to consider adding or removing one or more of the device options.

• The fifth parameter, 4, defines the number of densities. The maximum definable

number of densities is 4.

• The sixth, seventh, eighth and ninth parameter are used for system selection of

tape densities. Although the entries described above are recommended, other
density entries are possible. The following list describes the density codes used