User's Manual

DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem 1-1
Chapter 1
Overview and Features of the
DLT4000/DLT4500/DLT4700 Product
1.1 In This Chapter
Chapter 1 includes the following main topics and sections:
Topic Section
Product Overview 1.2
Fast Data Transfer Rate 1.3
High-Capacity 1.4
Compaction 1.5
Strong Media 1.6
Compatibility 1.7
Firmware Update Capability 1.8
Embedded Diagnostics 1.9
1.2 Product Overview
The DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem is a high-performance,
high-capacity, streaming cartridge tape product designed for use on midrange and high-
end computing systems. Using data compression and compaction, the DLT4000 drive
features a formatted capacity of 40 GB and a sustained user data transfer rate of 3.0 MB/s.
The DLT4000 drive is a 5-1/4 inch form factor, half-inch tape drive. The design includes a
dual-channel read/write head, Lempel-Ziv (DLZ) high-efficiency data compression, and
tape mark directory to maximize data throughput and minimize data access time.
The DLT4500 Subsystem is a tape mini-library that performs automatic tape operations.
The DLT4500 mini-library includes a high-capacity tape drive and a 5-cartridge, SCSI-2
medium changer device (loader). With a typical load/unload cycle time of 20 sec., the
mini-library can provide unattended backup of 100 GB in about 11 hours.
The DLT4700 Subsystem is a tape mini-library that performs automatic tape operations.
The DLT4700 mini-library includes the tape drive and a 7-cartridge SCSI-2 medium