Preliminary
1-1
September 21, 1999
BENCHMARK
T A P E
S Y S T E M S
Chapter 1
Introduction
1.1 Chapter
Overview
This chapter introduces your DLT1 Drive, both internal and desktop versions, the DLT7
Autoloader, and this
Installation and Operation Guide
.
1.2
DLT1 Drive Overview
Your DLT1 Drive is a high-performance, high-capacity streaming cartridge tape drive
designed for use on mid-range and high-end computing platforms. With a combination of
data compression and compaction, your DLT1 drive offers a formatted cartridge capacity of
40 GB (80 GB assuming a 2:1 compression ratio) and a sustained user data transfer rate of
3 MB/s (6 MB/s with compression). The capacity you realize in practice depends on the data
set, which affects the actual compression ratio.
Your DLT1 drive is built on a 5-¼ inch, full-height form-factor, using a ½-inch tape. Its design
includes a dual-channel read/write head, Lempel-Ziv (DLZ) high-efficiency data
compression, and tape-mark directory to achieve the fastest data throughput and data
access times.
1.2.1 Fast Data Transfer
Whether you use your DLT1 drive for unattended backups or archiving, the data transfer
rate your drive achieves is higher than many competing products. Your DLT1 drive’s native
(uncompressed) data transfer rate is 3.0 MB/s. With data compression, the data transfer rate
increases to 6.0 MB/s.
