User's Manual

Overview and Features of the DLT4000/DLT4500/DLT4700 Product

1-2 DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem

changer device (loader). The mini-library provides unattended backup of 280 GB in less

than 24 hours or up to 91 GB in an 8-hour shift in a compressed mode.

The drive and mini-libraries are available in a rack mountable form factor. Also, the

DLT4000 drive, DLT4500 mini-library and DLT4700 mini-library are available with

either single-ended or differential, fast driver/receivers.

1.3 Fast Data Transfer Rate

Used for unattended backups or archiving, the DLT4000/DLT4500/DLT4700 Subsystem

allows you to back up a higher data capacity at a higher speed than earlier products. The

DLT4000/DLT4500/DLT4700 Subsystem, when operating in a non-compressed mode, has

a maximum transfer rate of 1.5 MB/s. When operating in the compressed mode, the

maximum transfer rate is 3.0 MB/s write and over 2.5 MB/s read.

1.4 High-Capacity

The DLT4000 drive accepts the new DLTtape

IV cartridge. When this cartridge is used

the amount of data you can store on the tape can be up to 20.0 GB native, or 40.0 GB of

data using the compression mode. The actual amount of data stored in the compression

mode is dependent on the data type. Compression can be selected on the drive front panel

or from the host by using the SCSI MODE SELECT command.

The DLT4000 drive accepts the DLTtape

III cartridge. When this cartridge is used the

amount of data you can store on the tape can be up to 10.0 GB native, or 20.0 GB of data

using the compression mode. The actual amount of data stored in the compression mode is

dependent on the data type. Compression can be selected on the drive front panel or from

the host by using the SCSI MODE SELECT command.

The DLT4000 drive accepts the new DLTtape

IIIxt cartridge. When this cartridge is

used the amount of data you can store on the tape can be up to 15.0 GB native, or 30.0 GB

of data using the compression mode. The actual amount of data stored in the compression

mode is dependent on the data type. Compression can be selected on the drive front panel

or from the host by using the SCSI MODE SELECT command.

1.5 Compaction

The compaction feature of the DLT4000 drive helps you to store data efficiently. A

read/write data cache of 2.0 MB allows working space for the compaction, enabling

maximum use of available tape space.