Sandisk Technologies Inc.

Yan Nosovitsky

Yehuda Hahn

Noga Deshe

Sebastien Andre Jean

Lilia Brechman

Koren Ben-Shemesh

Yaron Zamir

A data storage device includes a non-volatile memory and a controller coupled to the non-volatile memory. The controller is configured to receive a first command from an access device, the first command associated with a first logical block address (LBA). The controller is also configured to, after receiving the first command, receive a second command and a third command from the access device. The second command is associated with a second LBA that precedes the first LBA, the third command is associated with a third LBA that succeeds the first LBA. The controller is further configured to determine that the first command, the second command, and the third command correspond to a sequential command stream.

Detection of a sequential command stream

A method for optimization of host sequential reads based on volume of data includes, at a mass data storage device, pre-fetching a first volume of predicted data associated with an identified read data stream from a data store into a buffer memory different from the data store. A request for data from the read data stream is received from a host. In response, the requested data is provided to the host from the buffer memory. While providing the requested data to the host from the buffer memory, it is determined whether a threshold volume of data has been provided to the host from the data buffer memory. If so, a second volume of predicted data associated with the identified read data stream is pre-fetched from the data store and into the buffer memory. If not, additional predicted data is not pre-fetched from the data store.

Methods, systems, and computer readable media for optimization of host sequential reads or writes based on volume of data transfer

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Herzliya, Israel

Yan Nosovitsky