公开(公告)号：US10990289B2

公开(公告)日：2021-04-27

申请号：US16146827

申请日：2018-09-28

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Michael Barrell ,  Zachary D. Traut ,  Scott Gergely

IPC: G06F3/06 ,  G06F12/0862 ,  G06F12/0868

Abstract: A data storage system includes a host system configured to provide an I/O request stream and a data storage subsystem. The data storage subsystem has a data storage device and a processor. The processor is configured to provide streaming data in response to the I/O request stream, determine a current streaming rate of the I/O request stream, and determine a time-based read ahead size based on a time ahead duration and the current streaming rate of the I/O request stream. The time-based read ahead size may be updated while streaming, for example, after a delay period.