WO2021082113A1

WO2021082113A1 - Method for maintaining dataset management operation effect of non-volatile memory host controller

Info

Publication number: WO2021082113A1
Application number: PCT/CN2019/119830
Authority: WO
Inventors: 陈立奇; 魏智汎; 王展南; 谢享奇
Original assignee: 江苏华存电子科技有限公司
Priority date: 2019-10-31
Filing date: 2019-11-21
Publication date: 2021-05-06
Also published as: CN110825586A

Abstract

Disclosed is a method for maintaining the dataset management operation effect of a non-volatile memory host controller. The present invention can enable a solid-state hard disk to serve a dataset management command of an interface specification of a non-volatile memory host controller in a timely manner and to still maintain a state in which data has been canceled after an unexpected power failure, and the data is canceled again during a recovery period after the unexpected power failure, thereby achieving the effect of the canceled data no longer being able to be read.

Description

Non-volatile memory host controller data set management operation effect maintaining method

Technical field

The invention relates to the technical field of non-volatile memory, in particular to a method for maintaining the effect of non-volatile memory host controller data set management operation.

Background technique

In the prior art, after receiving the data set management command of the non-volatile memory host controller interface specification, the data is directly cancelled or the background processing is stored in the non-volatile memory space of the solid-state hard disk. It is expected that after the power failure, these cancelled data will be restored due to the partial backup system state, resulting in the data that should be cancelled can be accessed and read.

Summary of the invention

The purpose of the present invention is to provide a method for maintaining the data set management operation effect of a non-volatile memory host controller to solve the above-mentioned problems in the background art.

In order to achieve the above objective, the present invention provides the following technical solution: a method for maintaining a data set management operation effect of a non-volatile memory host controller, including a solid state hard disk, the solid state hard disk receives a data set management command, the solid state hard disk stores command items, The solid-state hard disk stores valid data and invalid data.

Preferably, the solid-state hard disk includes a control module, a storage module, and a wireless communication module. The control module is used to write data into the storage module; and is also used to read data from the storage module; the storage The module is used to store the written data, the control module is also used to send the status information of the solid state drive to the host via the wireless communication module; it is also used to receive the management information sent by the host via the wireless communication module; the storage module , Including a cache area and a non-volatile storage area; the cache area is used to cache the written data received by the control module; the non-volatile storage area is used to store the written data.

Preferably, the method for maintaining the effect of non-volatile memory host controller data set management operation includes the following steps:

A. The solid state drive receives the data set management command;

B. After receiving the order, log off the data and save the order;

C. After recovering from an unexpected power cycle, the solid state drive will re-register invalid data from the stored command items.

Preferably, the command item includes a command item 1, a command item 2, and a new command item 3.

Compared with the prior art, the beneficial effect of the present invention is that the present invention can enable the solid state drive to serve the data set management commands of the non-volatile memory host controller interface specification in a timely manner, and it can still maintain the data set management command after unexpected power failure. The data has been cancelled, instead of the data being cancelled again during the recovery period after the power outage, the data that has been cancelled cannot be read again.

Description of the drawings

Figure 1 is a schematic diagram of the present invention;

Figure 2 is another schematic diagram of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Referring to Figures 1-2, the present invention provides the following technical solution: a method for maintaining a data set management operation effect of a non-volatile memory host controller, including a solid state drive, the solid state drive receiving a data set management command, and the solid state drive storing the command Items, command items include command item 1, command item 2, and new command item 3. The solid-state hard disk stores valid data and invalid data.

In the present invention, the solid state drive includes a control module, a storage module, and a wireless communication module. The control module is used to write data into the storage module; and is also used to read data from the storage module; the storage module , Used to store the written data, the control module is also used to send the status information of the solid state drive to the host via the wireless communication module; also used to receive the management information sent by the host via the wireless communication module; the storage module, It includes a cache area and a non-volatile storage area; the cache area is used to cache the written data received by the control module; the non-volatile storage area is used to store the written data. The solid-state hard disk of the present invention includes a control module and a storage module, which are used for reading and writing data. The solid state drive also includes a wireless communication module, which is used to send the status information of the solid state drive to the host and receive the management information sent by the host, so as to ensure that the solid state drive can be multiplexed as a management interface through the traditional in-band data interface to realize the In addition to the management and control of the hard disk, wireless communication can also be used to realize the acquisition and configuration or debugging of the health log information of the solid state hard disk, which can enable the operation and maintenance personnel to perform the operation of the solid state hard disk in the storage system anytime and anywhere. Monitoring, improve the convenience of operation, thereby enhancing the competitiveness of the product.

In the present invention, the non-volatile memory host controller data set management operation effect retention method includes the following steps:

A. The solid state drive receives the data set management command;

B. After receiving the order, log off the data and save the order;

In summary, the present invention can enable the solid state drive to serve the data set management commands of the non-volatile memory host controller interface specification in a timely manner, and it can still keep the data in the state of being cancelled after the unexpected power failure. It is expected that the data will be cancelled again during the recovery period after the power failure, and the cancelled data cannot be read again.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. And variations, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

A method for maintaining a data set management operation effect of a non-volatile memory host controller, characterized in that it includes a solid state hard disk, the solid state hard disk receives a data set management command, the solid state hard disk stores command items, and the solid state hard disk stores valid data. And invalid data.
The method for maintaining a data set management operation effect of a non-volatile memory host controller according to claim 1, wherein the solid state hard disk comprises a control module, a storage module and a wireless communication module, and the control module is used for Data is written into the storage module; also used to read data from the storage module; the storage module is used to store the written data, and the control module is also used to transmit the status information of the solid state drive via wireless The communication module is sent to the host; it is also used to receive the management information sent by the host via the wireless communication module; the storage module includes a buffer area and a non-volatile storage area; the buffer area is used to buffer the control module received The written data; the non-volatile storage area is used to store the written data.
The method for maintaining a data set management operation effect of a non-volatile memory host controller according to claim 1, characterized in that it comprises the following steps:

A. The solid state drive receives the data set management command;

B. After receiving the order, log off the data and save the order;

C. After recovering from an unexpected power cycle, the solid state drive will re-register invalid data from the stored command items.
The method for maintaining the effect of non-volatile memory host controller data set management operation according to claim 1, wherein the command item includes a command item 1, a command item 2, and a new command item 3.