Appendix A: Specifications
Power Consumption and Heat Output
Quantum Scalar i40 and Scalar i80 User’s Guide 345
Power Consumption and Heat Output
Typical library power consumption (watts/hour) and heat output (BTU/
hour) are listed below. The values listed below are average (not peak or
maximum) values.
Component
Typical Power
Co
nsumption
(Watts/Hour)
Typical Heat
Output (BTU/
Hour)
Scalar i40 library minimum configuration:
no tape drives installed; random robot movement
18 61
Scalar i40 library maximum configuration:
two (2) tape drives*, writing
70 239
Scalar i80 library minimum configuration:
no tape drives installed; one power supply, random
robot movement
18 61
Scalar i80 library maximum configuration:
five (5) tape drives*, writing, two power supp
lies
159 544
HP LTO-4 tape drive*, writing, one power supply,
no robot movement
24 82
HP LTO-5 tape drive*, writing, one power supply,
no robot movement
27 92
Second power supply, Scalar i80 7 24
* The difference in power consumption and heat output between full-height and half height tape drives, and
between Fibre Channel and SAS tape drives, is negligible.