User's Guide

Chapter 1 Library Description
Library Components
Quantum P4000 and P7000 Libraries User’s Guide 27
The mixed media gripper includes a Class II laser bar code scanner that
reads standard six-character (7 characters for SDLT and 8 characters for
LTO), 3 of 9 bar code labels. The scanner is used to maintain an inventory
of the tape cartridges within the library. An inventory occurs
automatically whenever the library is turned on or after the bulk load
door has been closed. An inventory can also be initiated from the host
computer.
Although the library does not require tape cartridges to have bar code
labels, properly labeled tape cartridges and full storage bins speed up the
inventory process.
Tape Drives 1 The P4000 can hold up to 10 tape drives and the P7000 can hold up to 16
tape drives, including combinations of DLT and SDLT, or DLT and LTO.
Table 15 Tape Drive
and Cartridge
Specifications
* Compressed capacity assumes a 2:1 compression ratio.
Tape
Cartridge
Transfer
Rate
Cartridge
Capacity
Cartridge
Capacity
(compressed)
Total Library
(P7000) Capacity
(679 bins)
Library
Capacity
(compressed*)
Quantum
DLT 8000
6 MB/
sec
40 GB 80 GB 27.16 TB 54.32 TB
Quantum
SDLT-220
11 MB/
sec
110 GB 220 GB 74.69 TB 149.38 TB
Quantum
SDLT-320
16 MB/
sec
160 GB 320 GB 108.64 TB 217.28 TB
Quantum
SDLT-600
36 MB/
sec
300 GB 600 GB 203.7 TB 407.4 TB
IBM LTO1 15 MB/
sec
100 GB 200 GB 67.9 TB 135.8 TB
IBM LTO2 35 MG/
sec
200 GB 400 GB 135.8 TB 271.6 TB
HP LTO2 30 MB/
sec
200 GB 400 GB 135.8 TB 271.6 TB