Multi-device storage with consolidated channel and control circuitry
AssigneeSeagate Technology LLC
InventorsPhilip Jurey, Dale T. Riley, John W. Shaw
Life of this patent
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Abstract
Apparatus and method for managing data in a multi-device data storage system. In some embodiments, a plurality of data storage devices are provided, each data storage device having a local driver circuit adapted to transfer data with a local memory module. A main driver circuit external to the plurality of data storage devices is configured to stream frequency modulated write data via parallel data transfer paths to the respective local driver circuits for concurrent transfer of the frequency modulated write data to the respective local memory modules.
Claims20
An apparatus comprising:
- a plurality of data storage devices each comprising a local driver circuit adapted to transfer data with a local memory module;
- and
- a main driver circuit external to the plurality of data storage devices configured to stream frequency modulated write data via parallel data transfer paths to the respective local driver circuits for concurrent transfer of the frequency modulated write data to the respective local memory modules.
A multi-device storage enclosure, comprising:
- a housing;
- a control board disposed within the housing, the control board comprising a read/write channel and a first stage preamplifier/driver circuit configured as a multi-channel data multiplexer;
- and
- a plurality of data storage devices disposed within the housing and coupled to the control board, each of the data storage devices comprising a second stage preamplifier/driver circuit configured to communicate with a plurality of movable data transducers adjacent rotatable data recording surfaces, the first stage preamplifier/driver circuit configured to stream frequency modulated write data via parallel data transfer paths to the respective second stage preamplifier/driver circuits for concurrent transfer of the frequency modulated write data to the respective data recording surfaces.
A method comprising:
- coupling a plurality of local driver circuits in a corresponding plurality of data storage devices to a main driver circuit external to the plurality of data storage devices;
- and
- streaming frequency modulated write data via parallel data transfer paths to the respective local driver circuits for concurrent transfer of the frequency modulated write data to memory modules of the data storage devices coupled to the local preamplifier/driver circuits.
Dependencies are inferred from the claim text.