US 11,455,124 B2 · Command prioritization to reduce latencies of zone commands

Abstract

Aspects of a storage device including a memory and a controller are provided which re-prioritize commands based on zone properties. The controller receives from a host commands associated with a plurality of zones, allocates the memory into a plurality of zone resources based on zone properties indicated by the host for the zones, and identifies a utilization state of the memory for one of the zones. The controller changes a priority order of the commands based on the zone properties and the utilization state for the one of the zones. The controller then executes the commands in the memory or zone resources according to the priority order. As a result, execution of commands may be balanced between zones and lower latencies may be achieved overall for each zone. Improved performance or throughput of the storage device in handling zone commands may therefore result.

Claims20

Dependent claims

A storage device, comprising:

a memory;
and
a controller configured to receive, from a host, commands associated with a plurality of zones, to change a priority order of the commands based on zone properties indicated by the host for the zones, and to execute the commands in the memory according to the changed priority order;
wherein the controller is further configured to allocate from the memory a first set of resources and a second set of resources for each of the zones, the first set of resources of a respective zone satisfying the zone properties of the respective zone, and
wherein the controller is further configured to execute one of the commands for the respective zone simultaneously in the first set of resources and the second set of resources.

2 more elements

Dependencies are inferred from the claim text.

Command prioritization to reduce latencies of zone commands

Life of this patent

Command prioritization to reduce latencies of zone commands

Life of this patent

Abstract

Claims20