Economical And Quiet; Hardware Overview - Hitachi G1000 Hardware Manual

Temperature measurement
Ambient air temperature is measured by a sensor in the cooling air inlet on
each module in the primary VSD pair on each controller.

Economical and quiet

The storage system is an ENERGY STAR
qualification specifications for data center storage. For more information, visit
http://www.energystar.gov/productfinder/product/certified-data-center-
storage/details/2252003.
The speed of the fans in the controller and drive chassis is controlled by
sensors in the units that measure the temperature of the exhaust air and set
the fans to the speed necessary to maintain the unit temperature within a
preset range. When the system is less busy, it generates less heat and fan
speed is reduced, saving energy and reducing the noise level.

Hardware overview

The following section describes the storage system components.
Hitachi Virtual Storage Platform G1000, G1500, and Virtual Storage Platform F1500 Hardware Guide
® qualified product and meets the
Introduction 21