HP EML E-series Tape Libraries - Manual (Page 24)

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.
10437
3 4 5 1 2
1 Viewing window 4 Power supplies
2 4U blank 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 and cannot be used. If the capacity expansion module is placed below
the base module or a tape drive expansion module, six slots at the top of the back wall cannot be used
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 motion inside
the library. To the right is a 10-cartridge configurable load port that holds two 5-cartridge magazines.
On the back of the capacity expansion module are cable management features for cable routing and
dressing.
24 Library overview