Abstract: In solid state memory devices, garbage collection can be a bottleneck in meeting stringent performance requirements of certain hosts that generate a relatively-large amount of data (e.g., hosts that generate video data). With such hosts, the performance drop caused by background garbage collection can result in video recording failures. The memory device and method presented herein performs background operations in such a way as to enhance sustained performance. In general, a counter is maintained that reflects an amount of memory written to by a host, as well as an amount of memory freed by garbage collection operations. Each step of a garbage collection operation can be performed in response to a value of the counter being greater than a threshold for the step such that there is a balance between memory written and memory freed.

Abstract: In solid state memory devices, garbage collection can be a bottleneck in meeting stringent performance requirements of certain hosts that generate a relatively-large amount of data (e.g., hosts that generate video data). With such hosts, the performance drop caused by background garbage collection can result in video recording failures. The memory device and method presented herein performs background operations in such a way as to enhance sustained performance. In general, a counter is maintained that reflects an amount of memory written to by a host, as well as an amount of memory freed by garbage collection operations. Each step of a garbage collection operation can be performed in response to a value of the counter being greater than a threshold for the step such that there is a balance between memory written and memory freed.

Abstract: An access control system, data storage device, and method to enable an authorized host computing system to access replay protected memory blocks (RPMB) in a data storage device (DSD). This includes an access control system determining the host computing system to be authorized to access the DSD, and securely programming the host computing system and DSD with at least one RPMB key. The DSD is configured to authenticate, using the RPMB key, requests from the host computing device to access the protected memory blocks.

Abstract: Systems and methods for predictive performance indicators for storage devices are described. The data storage device may process host storage operations and maintenance operations that impact real-time performance. A performance value and corresponding threshold may be determined. Increases in maintenance operations and resulting changes in the performance value may be predicted. When the predicted change in performance value crosses the performance threshold, the host device may be notified.

Abstract: Systems and methods for predictive performance indicators for storage devices are described. The data storage device may process host storage operations and maintenance operations that impact real-time performance. A performance value and corresponding threshold may be determined. Increases in maintenance operations and resulting changes in the performance value may be predicted. When the predicted change in performance value crosses the performance threshold, the host device may be notified.

Abstract: Systems and methods data storage device performance prediction based on garbage collection resources are described. The data storage device may process host storage operations and determine a valid fragment count parameter for a current or future data block. Based on the valid fragment count parameter a predicted performance value for host storage operations is determined and the host device is notified of the predicted performance value.

Abstract: Systems and methods for predictive performance indicators for storage devices are described. The data storage device may process host storage operations and maintenance operations that impact real-time performance. A performance value and corresponding threshold may be determined. Increases in maintenance operations and resulting changes in the performance value may be predicted. When the predicted change in performance value crosses the performance threshold, the host device may be notified.

Abstract: Systems and methods data storage device performance prediction based on garbage collection resources are described. The data storage device may process host storage operations and determine a valid fragment count parameter for a current or future data block. Based on the valid fragment count parameter a predicted performance value for host storage operations is determined and the host device is notified of the predicted performance value.

Abstract: Systems and methods for predictive performance indicators for storage devices are described. The data storage device may process host storage operations and maintenance operations that impact real-time performance. A performance value and corresponding threshold may be determined. Increases in maintenance operations and resulting changes in the performance value may be predicted. When the predicted change in performance value crosses the performance threshold, the host device may be notified.