Using IBM LTO Ultrium with Open Systems - RS/6000 Home

DLT expansion frame 3584-D42
Each 3584 Model D42 expansion frame contains from 1 to 12 DLT 8000 tape
drives, each having a native data transfer rate of 6 MB/s and a cartridge capacity
of 40 GB. Using data compression, the DLT 8000 drives have an effective data
rate of up to 12 MB/s and a cartridge capacity of up to 80 GB (with 2:1
compression) on DLTtape IV media. Each 3584-D42 frame supports up to 360
storage slots and up to twelve drives, with incremental reduction of storage slots
for each set of four of drives installed. A 3584 UltraScalable Tape Library with five
D42 frames has a capacity of up to 1784 DLTtape slots and 229 LTO Ultrium
slots, resulting in a maximum native data capacity of 22.9 TB on LTO Ultrium
media and 71.4 TB on DLT tape. Each frame can have up to six logical libraries
and six control paths due to the multipath capability of the 3584.
Figure 1-8 shows the different slot and drive capacities contained in each type of
3584 frame.
Drives in Model
L32
Frame
0-4
5-8
9-12
Drives in Model
D32 Frame
0
1-4
5-8
9-12
Drives in Model
D42 Frame
0
1-4
5-8
9-12
Slots in Model L32 Frame
(without Capacity Expansion
Feature
Native Comp.
Quantity
141
113
87
Capacity
(in TB)
14.1
11.3
8.7
Quantity
440
423
409
396
Quantity
360
346
333
324
Figure 1-8 3584 frame capacity
Capacity
(in TB)
28.2
22.6
17.4
Slots in Model L32 Frame
(with Capacity Expansion
Feature and 30 I/O Slots)
Native Comp.
Quantity Capacity Capacity
(in TB) (in TB)
229 22.9 45.8
201 20.1 40.2
175 17.5 35.0
Slots in Model D32 Frame
Native Capacity (in TB)
44.0
42.3
40.9
39.6
Slots in Model D42 Frame
Native Capacity (in TB)
14.4
13.8
13.3
12.9
Slots in Model L32 Frame
(with Capacity Expansion
Feature and 10 I/O Slots)
Native Comp.
Quantity Capacity Capacity
(in TB) (in TB)
281 28.1 56.2
253 25.3 50.6
227 22.7 45.4
Compressed Capacity (in TB)
88.0
84.6
81.8
79.2
Compressed Capacity (in TB)
28.8
27.6
26.6
25.8
Chapter 1. Introduction to LTO Ultrium with UNIX 15