Western Digital Technologies, Inc.

Alec D Parken

John Thomas Contreras

Masahito Kobayashi

Robert Morelli Fallone

Robert Carl Reinhart

Teik Ee Yeo

Junzo Noda

Michael J Esmond

A method of operating a data storage device is disclosed comprising an enclosure comprising a first head actuated over a first disk surface and a second head actuated over a second disk surface. A manufacture printed circuit board (PCB) is coupled to the enclosure, wherein the manufacture PCB comprises at least one dual channel configured to execute concurrent access operations. While the manufacture PCB is coupled to the enclosure, the data storage device is operated as a dual channel device. The manufacture PCB is decoupled from the enclosure and a product PCB is coupled to the enclosure, wherein the product PCB comprises a single channel configured to execute a single access operation.

Data storage device configured with manufacture PCB for concurrent write/read operation

A data storage device (DSD) includes a non-volatile memory (NVM) media for storing data. A last resort zone of the NVM media is associated with a higher risk of data loss or data corruption than other portions of the NVM media and is reserved as unavailable for storing data. It is determined whether a current data storage capacity and/or an environmental condition for the NVM media has reached a threshold. The last resort zone is set as available for storing data if it is determined that the threshold has been reached and data is written in the last resort zone.

Data management for a data storage device using a last resort zone

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Pleasanton, CA, United States of America

Alec D Parken