Patent ID: 6883062

Claim:
A disk data storage device comprising of: one or more disks for storing data having track widths lesser than three times the maximum possible disk deformation in any direction, one or more actuators driving one or more head arms for each used surface, wherein at least two surfaces are used for storing any type of data, wherein each arm has a piezo-electric crystal-based fine head positioning system comprised of one or more such crystals to which heads are attached either directly or indirectly, such as via a lever, wherein the said crystals are controllably deformable to move the head in desired direction and distance, wherein the said fine head positioning system can move heads distant and precise enough to be able compensate for said deformations of disk material, deformations of actuator arm and deformations or production imprecision of any present components affecting relative positioning between the disks and heads or heads relative to one another, wherein the each of the said fine head positioning systems is independently controllable such that heads fitted on them can be independently moved into independent directions such that all the heads on the same common actuator can be aligned on the same cylinder while maintaining the independence of heads on separate head arm actuators, wherein any or all of the heads available per surface can be used to read or write data on that surface, therefore having the ability to access data on any surface having at least one operational head for that surface, logic and/or circuitry controlling all available head arm actuators and all independent fine head positioning systems wherein this logic positions all the heads on the cylinder designated for each head arm during a seek operation and maintains this position on that cylinder until a new position is needed for heads on that particular arm, logic and/or circuitry capable of reading data from all (read) heads simultaneously and capable of writing data using all (write) heads simultaneously or being able to otherwise simultaneously use all heads for read and write operations, a communications interface through which the commands, responses and other data being read, written and/or otherwise important is being transmitted, and logic and/or circuitry controlling the entire device and capable of caching intermediate data, reading data recorded ahead of time in anticipation of it being requested and planning strategies of future operations, wherein this logic exposes the linear sector addressing mode not requiring the host to handle particular physical geometry of disks and recorded data.