US 12,754,681 B2 · Smart host stream release

Abstract

Aspects of a storage device are provided for intelligently releasing a stream. The storage device includes one or more non-volatile memories, and one or more controllers operable to release a stream in the storage device. In particular, the controller(s) may, individually or in combination, obtain a stream release request from a host device, the stream release request indicating a stream identifier and including an indication of whether to deallocate a stream associated with the stream identifier, and deallocate, in response to the stream release request and based on the indication, a plurality of logical addresses associated with the stream from corresponding physical addresses associated with the one or more non-volatile memories. The deallocation may be performed without waiting for dataset management commands for deallocation from the host. Thus, reduced performance impact and latency may be achieved in the process of deallocating logical address ranges associated with a released stream identifier.

Claims15

Dependent claims

A storage device, comprising:

one or more non-volatile memories;
and
one or more controllers each communicatively coupled with at least one of the one or more non-volatile memories, the one or more controllers, individually or in any combination, operable to:
obtain a stream release request from a host device without a subsequent Data Set Management (DSM) request from the host device, the stream release request indicating a stream identifier and including an indication of whether to deallocate a stream associated with the stream identifier, wherein the indication of whether to deallocate the stream is a deallocation bit in the stream release request, wherein the deallocation bit indicates whether or not to deallocate logical blocks associated with the stream;
and
deallocate, in response to the stream release request and based on the indication, a plurality of logical addresses associated with the stream from corresponding physical addresses associated with the one or more non-volatile memories in response to the obtained stream release request without the subsequent DSM request.

3 more elements

Dependencies are inferred from the claim text.

Smart host stream release

Life of this patent

Smart host stream release

Life of this patent

Abstract

Claims15