US 12,001,359 B2 · Identification and classification of write stream priority

Abstract

Increases in efficiency of storage device operation may be realized if the limited number of available high-priority communication channels are better optimized and assigned among hosts that may best utilize them. This assignment can occur in response to an evaluation of the overall zone usage or by received metadata and/or indicia from the host. The storage device may periodically, or in response to a command, reevaluate the assigned priority status of each communication channel and associated host/zone pair. For example, the storage device may demote or remove a communication channel from high-priority to low-priority. This process can be continued during a preconfigured time window which can be adjusted before, during, or after priority evaluation. The continuous operation of this process can allow for adjustments being made to priority levels within the storage device that may further increase total operational efficiency.

Claims20

Dependent claims

A device comprising:

a processor;
a memory array comprising a plurality of memory devices, wherein the plurality of memory devices is grouped into a plurality of zones;
a plurality of communication channels configured to connect to a plurality of hosts, wherein:
each zone of the plurality of zones is configured to communicate with a single host;
and
the plurality of communication channels comprises both high-priority communication channels and low-priority communication channels;
and
a priority assignment logic, executed by the processor, configured to:
in response to a determination that data transmitted from a host of the plurality of hosts comprises indication signal indicative of a high-priority communication requirement, assign a high-priority communication channel to the host;
and
provide a use of the high-priority communication channel to the host;
establish a time window-based analysis with respect to host data stream write patterns;
scan for one or more available zones within the storage device;
and
determine an amount of storage device usage commands issued per zone.

12 more elements

Dependencies are inferred from the claim text.

Identification and classification of write stream priority

Life of this patent

Identification and classification of write stream priority

Life of this patent

Abstract

Claims20