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2008
ACM

Power management of MEMS-based storage devices for mobile systems

13 years 4 months ago
Power management of MEMS-based storage devices for mobile systems
Because of its small form factor, high capacity, and expected low cost, MEMS-based storage is a suitable storage technology for mobile systems. MEMS-based storage devices should also be energy efficient for deployment in mobile systems. The problem is that MEMS-based storage devices are mechanical, and thus consume a large amount of energy when idle. Therefore, a power management (PM) policy is needed that maximizes energy saving while minimizing performance degradation. In this work, we quantitatively demonstrate the optimality of the fixed-timeout PM policy for MEMS-based storage devices. Because the media sled is suspended by springs across the head array in MEMS-based storage devices, we show that these devices (1) lack mechanical startup overhead and (2) exhibit small shutdown overhead. As a result, we show that the combination of a PM policy, that fixes the timeout in the range of 1
Mohammed G. Khatib, Pieter H. Hartel
Added 12 Oct 2010
Updated 12 Oct 2010
Type Conference
Year 2008
Where CASES
Authors Mohammed G. Khatib, Pieter H. Hartel
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