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Samsung patents storage method that flags out-of-order data writes

This filing describes a storage device that uses two types of memory to handle data writes. If a write request arrives for a location that does not match the current writing position, the device temporarily stores the data in a secondary memory and sends a failure signal to the computer.

Why it mattersThis improves data integrity in storage systems by clearly signaling when data arrives in an unexpected order, which helps prevent silent errors in hard drives and SSDs.

In the filing’s own words

A storage device according to some example embodiments comprises a non-volatile memory including a first memory including a plurality of zones configured to sequentially store data based on a write pointer, the write pointer indicating a position to write the data, and a second memory configured to store preliminary data to be written in the plurality of zones, and a storage controller configured to receive a plurality of operation requests, each of the plurality of operation requests including a logical block address, a write command, and write data, and store first write data corresponding to a first operation request in the second memory as first preliminary data, if the position of a first logical block address corresponding to the first operation request among the plurality of operation requests and the write pointer does not match.

What exactly they claim (claim 1)

1. An operating method of a storage device including a first memory and a second memory, the method comprising: receiving, from a host device, a plurality of operation requests, each of the plurality of operation requests including a logical block address, a write command, and write data, determining whether a first operation request of the plurality of operation requests is processable based on a comparison between the logical block address and a write pointer of a first memory, wherein the first memory includes a plurality of zones configured to sequentially store data based on the write pointer, the write pointer indicating a position to write the data, storing first write data corresponding to a first operation request in the second memory as first preliminary data, based on a position of a first logical block address corresponding to the first operation request among the plurality of operation requests and the write pointer not matching, generating a failure signal indicating that the first operation request cannot be processed based on the first logical block address in response to a determination that the first operation request cannot be processed, and transmitting, a failure signal indicating that the first operation request cannot be processed to the host device.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
STORAGE DEVICE, OPERATING METHOD OF STORAGE DEVICE, AND STORAGE SYSTEM WHERE FAILURE SIGNAL IS GENERATED BASED ON LOGICAL ADDRESS MISMATCH
Publication number
US20260267791A1
Application number
19657960
Filed
Apr 24, 2026
Published
Sep 10, 2026
Inventors
5
Claims
20

Classified under

G06F 12/0246 Physics & computingG06F 2212/7202 Physics & computingG06F 2212/7203 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.