Western Digital Technologies, Inc.

Jonathan K Cheng

Choo-Bhin Ong

Zaihas Amri Fahdzan Hasfar

Si Ho

Communication between a host and a data storage device (DSD) including a first media for storing data and a second media for storing data. In one embodiment, a first controller of the DSD is configured to control operation of the first media and a second controller of the DSD is configured to control operation of the second media. The first controller receives a key data block of a monitoring system from the host with the key data block including a task file. The key data block is evaluated to determine if the key data block is directed to the second media, and if it is determined that the key data block is directed to the second media, the task file of the key data block is sent from the first controller to the second controller.

Communication between a host and a secondary storage device

A data storage device (DSD) enters a high spindle suppression (HSS) mode to reduce instances of rotation of a spindle motor of the DSD during the HSS mode. When a read command is received from a host to read requested data from the DSD in the HSS mode, it is determined whether the requested data is not stored in a solid state memory of the DSD. If it is determined that the requested data is not stored in the solid state memory, the spindle motor is controlled to rotate a disk of the DSD. The requested data is read from the disk and stored in the solid state memory before completing transfer of the requested data to the host.

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Mission Viejo, CA, United States of America

Jonathan K Cheng