Systems and methods for priority command data fetching management

Abstract

Storage devices are often configured to receive and process commands from a host-computing device. These commands can vary in size and priority with larger sizes of command data being processed by storage devices more frequently. As these sizes increase, more situations occur when newly received high priority commands are received and ready for processing, but must wait for the current data associated with a normal priority command to be fetched and/or processed. Traditionally, the high priority command must wait, no matter how long, until the currently underway normal priority command is fetched and/or completed. However, methods and system described herein allow for the interruption of normal priority data fetching prior to completion. In this way, lower latencies may be achieved as high priority commands are not required to wait for processing. The previously fetched data may be dumped and re-fetched again or may be stored until normal operations can resume.