Quantum DLT1IRIX536X User Manual

DLT™ TAPE UNIT INSTALLATION

SGI® Systems

IRIX® 5.3 and 6.X

Installation

SGI system must have the appropriate SCSI interface for DLT drive to attached to, i.e., a SCSI single­ended DLT drive can be attached only to a SCSI single-ended interface. The same is true for SCSI
differential attachment. The hardware attachment requires the DLT tape peripheral to be attached to the
SCSI interface while the system is powered down. After the DLT tape peripheral has been attached, you
will need to make file modifications and perform certain system operations that allow the DLT tape
peripheral to be recognized.

Perform the installation as follows:

1. Shut down the SGI system 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 boot the system. Log on as root and execute the following
UNIX command to verify the DLT attachment:

hinv -c tape

For a DLT device whose SCSI ID is set to 4 and is attached to the
system's
first host adapter but not system configured, the system response
should
be similar to the following:

Tape drive: unit 4
on SCSI controller 0: unknown

1. If you're operating system is IRIX 5.3, open the /usr/var/sysgen/master.d/scsi
file for editing; for IRIX 6.X, open /var/sysgen/master.d/scsi file for editing. As
appropriate for the currently running operating system version, add the following
to the table of structures. This will enable DLT system recognition: For IRIX 5.3:

/* DLT tape drive */

{DECDLT, TPDLT, "<Vendor length>", 7, "<Vendor ID>", "<DLT tape
unit>",0 , 0, {0, 0, 0, 0 }, MTCAN_BSF | MTCAN_BSR | MTCAN_APPEND
| MTCAN_SPEOD | MTCAN_CHKRDY | MTCAN_VAR | MTCAN_SETSZ | MTCAN_SILI |
MTCAN_SEEK
| MTCAN_SYNC | MTCAN_CHTYPEANY, 20, 8*60, 20*60, 5*60, 16384, 64*1024}

For IRIX 6.X:

/* DLT tape drive */

{DECDLT, TPDLT, "<Vendor length>", 7, "<Vendor ID>", "<DLT tape u
nit>",0 , 0, {0, 0, 0, 0 }, MTCAN_BSF | MTCAN_BSR | MTCAN_APPEND |
MTCAN_SPEOD
| MTCAN_CHKRDY | MTCAN_VAR | MTCAN_SETSZ | MTCAN_SILI | MTCAN_SEEK |
MTCAN_SYNC
| MTCAN_CHTYPEANY, 20, 8*60, 20*60, 5*60, 16384, 64*1024,0 (u_char *)0}

Depending on the DLT tape peripheral you are installing, you will need to make substitutions for <Vendor
length>, <Vendor ID>, and <DLT tape unit> in the above structure. The following table shows the DLT

tape product and the corresponding substitution values:

DLT Tape Product

<Vendor

length>

<Vendor ID>

<DLT tape

unit>

DLT 1 7

Keep in mind that the Vendor ID entries are case sensitive. Refer to the tpsc_types structure in the

/usr/include/sys/tpsc.h file for further information on the above structure entries and to the
/usr/include/sys/mtio.h file for further information on the MTCAN flag definitions.

1. Enter the following command to configure the DLT device into the system:

/etc/autoconfig

BNCHMARK

DLT1

1. Reboot the system.

2. After reboot is complete and you have logged in as root, change directory to /dev.

Enter the following command to establish the DLT device files:

./MAKEDEV