Quantum DLTtape DLT1 User manual

DLT™ TAPE UNIT INSTALLATION
HP® 9000 Series 700 System
HP-UX® 9.X
Installation
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. The hardware attachment simply requires the DLT tape peripheral to be attached to the
interface while the system is powered down. After the DLT tape peripheral has been attached, you will
need to perform certain system operations that will allow DLT device system recognition.
Perform the installation as follows:
1. Shutdown the 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.
1. Power up the system. During the power-up, the process allows you to stop the
sequence by pressing the ESC key. By doing so, you can verify drive attachment
by issuing a search for boot device selection. This will display all attached SCSI
devices including the DLT tape drive. The boot process can continue by selecting
the appropriate boot disk.
2. Log on as root and change directory to /dev/rmt
In the next step, you will create a set of device files that will allow DLT device access. These device files
allow certain DLT device modes of operation.
1. Enter the following commands:
mknod 1m c 54 0x201402
mknod 1mn c
54 0x201403
mknod 1c c 54 0x2014c2
mknod 1cn c 54 0x2014c3

The device files created are for an installed DLT device with a SCSI ID of 4 and are shown below along
with their corresponding operating characteristics:
1m - drive 1, rewind on close
1mn-d
rive 1, no rewind on close
1c - drive 1, compressed, rewind on close
1cn - drive 1, compressed, no rewind on close
Associating the device files to a DLT device with a SCSI ID other than
4
requires that the number "4" in the minor number of the
mknod command be changed to the new ID.
DLT Mini-Library Usage
The HP-UX operating system does not support SCSI-2 media changer device commands. Therefore, an
installed DLT7 mini-library can not be utilized in random access mode and can only be accessed in
sequential mode. Refer to the DLT1/DLT7 Install and Operations Guide for detailed description of these
access modes.