Shutdown Policies for MEMS-Based Storage Devices -- Analytical Models

Abstract

MEMS-based storage devices should be energy ecient for deployment in mobile systems. Since MEMS-based storage devices have a moving me- dia sled, they should be shut down during periods of inactivity. However, shutdown costs energy, limiting the applicability of aggressive shutdown decisions. The media sled in MEMS-based storage devices is suspended by springs. We introduce a policy that exploits the spring structure to reduce the shut- down energy. As a result, the aggressiveness of the shutdown decisions can be increased, reducing the energy consumption. This report devises analytical models of the shutdown time and energy of this policy