Quantum DLT1SUNOS413 User Manual

DLT™ Tape Unit Installation

Sun® SPARCstation™

SunOS 4.1.3

Installation

Instructions will cover the installation of the DLT tape peripheral hardware and configuration of the system to communicate with the DLT tape peripheral. SunOS 4.1.3 includes a driver to efficiently communicate with tape drives, such as the DLT tape peripheral. The system must have the appropriate SCSI interface for DLT drive to attach to, i.e., a SCSI single-ended DLT drive can be attached only to a SCSI single-ended interface. The same is true for SCSI differential attachment.

Perform the installation as follows:

1. 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.

2. 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.

3. Boot the system and log in as root.

4. Change directory to /usr/sys/scsi/targets.

5. Edit the file st_conf.c by adding the following to the end of the table:

’ /* DEC 1/2" Cartridge */

{

"<DLT tape unit>", 15, "<DLT tape unit>", ST_T YPE_HIC, 16384,

(ST _VARIABLE | ST_BSF | ST_BSR | ST_LONG_ERASE),

400, 400,

{ <Density 1>, <Density2>, <Density 3>, <Density 4>},

{0,0,0,0}

}

Where:

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

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

DLT Tap e Product

DLT 1 Q UANTUM DLT7000

Total string character count, including spaces, in <DLT tape unit> must equal 15.

• <Density 1> and <Density 2> define part of the density code selection option and

< DLT tape unit>

are set according to the following table. <Density 1> is the default density.

DLT Tape

Product

DLT 1

The above table entry is applied to a structure called st_drivetype and is defined in /usr/sys/scsi/targets/stdef.h. The structure is shown below:

struct st_drivetype

0x40

0x86

0x87

{

char *name; /*

Name for debug */

char length; /* Length of vendor id */

char vid [24]; /* Vendor id and model id */

char t ype; /* Drive type for driver */

short bsize; /* Block size */

int option; /* Drive option */

0x7F

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