Overview 2-3
2-
Overview
This section of the document provides a physical description
of the switches, indicators and connectors on the front and
rear panels of the 4000/7000DLT Series. Additional
information describes other requirements (additional
hardware and/or software) needed to utilize the
4000/7000DLT Series.
Descri
p
tion
The 4000/7000DLT Series consists of two models, the
DLTTM4000 and the DLTTM7000. They are all SCSI-2
compatible, high performance, streaming tape cartridge data
storage devices designed for storage of near-line and off-line
data. All models use data compression, compaction, and
Digital Linear Tape (DLT) to obtain the capacities shown in
Table 2-1. The 4000/7000DLT Series are equipped with a 2-
line by 20-character backlit LCD display. The LCD displays
drive status messages, error messages, and drive Power-On
Self-Test (POST) results messages.
The 4000/7000DLT Series are equipped with a 5 1/4 inch form
factor, half-inch tape drive. The design includes a dual-
channel read/write head, Digital Lempel-Ziv (DLZ) high-
efficiency data compression, and tape mark directory to
maximize data throughput and minimize data access time.
Used for unattended backups or archiving, the 4000/7000DLT
Series allows you to back up a higher data capacity at higher
speed than either 8mm or 4mm DAT-based drives. Table 2-2
lists the maximum compressed mode transfer rates of the two
models:
Table 2-1 Maximum Capacity
Model DLTTape III DLTTape IIIXT DLTTape IV
4000DLT 10 GB (native)
20 GB (compressed) 15 GB (native)
30 GB (compressed) 20 GB (native)
40 GB (compressed)
7000DLT 10 GB (native)
20 GB (compressed) 15 GB (native)
30 GB (compressed) 35 GB (native)
70 GB (compressed)