Method and apparatus for controlling a storage device

A method of power management for a personal electronic device comprising:

• identifying, at a host device, performance constraints corresponding to user expectations of the host device;
• transmitting the identified performance constraints to a storage device responsive to the host device;
• computing, at the storage device, power consumption and behavior settings for achieving the identified performance constraints by adjusting power consumption and performance settings;
• and
• invoking optimization logic for computing the performance constraints, the user expectations based on an identifier of user presence based on an observed idle period, currently launched applications, and a history of application activity indicative of computational intensity and responsiveness of the launched applications.

A method of power management for a personal electronic device comprising:

• identifying, at a host device, performance constraints corresponding to user expectations of the host device;
• transmitting the identified performance constraints to a storage device responsive to the host device;
• computing, at the storage device, power consumption and behavior settings for achieving the identified performance constraints by adjusting power consumption and performance settings;
• selectively degrading performance to reduce power consumption and maintaining an acceptable performance level while operating with reduced user interaction;
• and
• resuming full power operation with active user interaction such that applications remain launched and updated.

A personal electronic device for active power management comprising:

• a host device adapted to identify performance constraints corresponding to user expectations of the host device;
• an interface to a storage device responsive to the host device and configured to transmit the identified performance constraints to the storage device;
• the storage device operable to compute power consumption and behavior settings to achieve the identified performance constraints;
• and
• a display screen on the host device, the display screen to provide output based on the user expectations and resulting from adjustment of power consumption and performance settings.

A computer program product having instructions encoded on a non-transitory computer readable storage medium that, when executed by a processor, perform a method of power management for a personal electronic device, the method comprising:

• receiving a behavior command based on current user expectations of storage device performance;
• computing a operational state corresponding to the received behavior command;
• adjusting behavior settings by adjusting power consumption and performance settings based on the computed operational state, the storage device having behavior settings indicative of active management of internal operations:
• selectively degrading performance to reduce power consumption and maintaining an acceptable performance level while operating with reduced user interaction;
• and
• resuming full power operation with active user interaction such that applications remain launched and updated.