HP StorageWorks Enterprise Modular Library E-Series user guide (AH876-96001, October 2007)

library tape drive capacity. One interface controller is added for every four additional LTO2 or LTO3
tape drives. LTO4 tape drives do not connect to an interface controller; instead, they connect directly
to the SAN. Two power supplies are located at the bottom of the card cage, and two cooling fans
are on the right.
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3 4 51 2
1
Viewing window
4
Power supplies
2
4U b lank cover
5 Fans
3
Card slots
Figure 6 Card cage expansion module
Capacity expansion module
The capacity expansion module is an 8U chassis containing 120 LTO slots (110 permanent and
10 configurable). If the library floor is attached to the capacity expansion module, the bottom row
containing 10 slots is blocked an d cannot be used. If the capacity expansion module is placed below
thebasemoduleoratapedriveexpansionmodule,sixslotsatthetopofthebackwallcannotbeused
because the tape drives in the module above it prevent the robot from reaching these slots.
On the front of the capacity expansion module are three windows for viewing the robotic m otion inside
the library. T o the right is a 10-cartridge configurable load p or t that holds two 5-car tridge magazines.
On the ba ck of the capacity expansion module are cable management features for cable routing and
dressing.
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Library over view