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Chapter 1 Overview
Library Scalability
ATL M-Series User’s Guide 3
Table 1 Capacity,
ATL M1500 Multiple
Library Stack
# of ATL M1500 Library Modules
Max. # of Tape Drives
# of
Cartridges
*
* The values in the # of Cartridges and Capacity columns assume that all the magazines and
fixed cartridge slots are fully populated with data cartridges.
Capacity (in TB)
*
DLT/SDLT
LTO
DLT 8000 SDLT 220 SDLT 320
HP LTO
Gen 1
HP LTO
Gen 2
Native
Compressed
†
† Compressed values assume 2:1 compression ratios.
Native
Compressed
†
Native
Compressed
†
Native
Compressed
†
Native
Compressed
†
1 2 21 25 0.8 1.7 2.3 4.6 3.4 6.7 2.5 5.0 5.0 10.0
2 4 42 50 1.7 3.4 4.6 9.2 6.7 13.4 5.0 10.0 10.0 20.0
3 6 63 75 2.5 5.0 6.9 13.9 10.1 20.2 7.5 15.0 15.0 30.0
4 8 84 100 3.4 6.7 9.2 18.5 13.4 26.9 10.0 20.0 20.0 40.0
5 10 105 125 4.2 8.4 11.6 23.1 16.8 33.6 12.5 25.0 25.0 50.0
6 12 126 150 5.0 10.1 13.9 27.7 20.2 40.3 15.0 30.0 30.0 60.0
7 14 147 175 5.9 11.8 16.2 32.3 23.5 47.0 17.5 35.0 35.0 70.0
8 16 168 200 6.7 13.4 18.5 37.0 26.9 53.8 20.0 40.0 40.0 80.0
9 18 189 225 7.6 15.1 20.8 41.6 30.2 60.5 22.5 45.0 45.0 90.0
10 20 210 250 8.4 16.8 23.1 46.2 33.6 67.2 25.0 50.0 50.0 100.0