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
