Business processing method based on Flash

A transaction processing and transaction technology, which is applied in the field of memory, can solve problems such as data inconsistency, achieve the effects of maintaining consistency, reducing the use of a large amount of memory space, and improving efficiency

Inactive Publication Date: 2010-03-03
HISENSE BROADBAND MULTIMEDIA TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a transaction processing method based on Flash, by increasing the information related to transaction processing in the virtual sector allocation table, the validity of the data of the same transaction remains consistent, thereby solving the problem of data inconsistency

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  • Business processing method based on Flash

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] The Flash-based transaction processing method of the present invention is based on dynamic Flash, and the Flash storage space is divided into several logical partitions, each logical partition includes one or more continuous physical blocks, and the logical partition stores at least one type of data records. Taking the storage space occupied by each data record as a virtual sector, each virtual sector is provided with a virtual sector allocation table, and the virtual sector allocation table corresponds to the virtual sector allocation table The data records are sequentially written into the physical blocks of the logical partition. When the Flash memory reads and writes, the data record is used as the basic unit to read and write data.

[0027] In order to ensure that a group of interrelated data will not cause data inconsistency due to abnormal con...

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Abstract

The invention discloses a business processing method based on Flash. A Flash storage space is divided into a plurality of logic partition zones which store at least one type of data record; a storagespace occupied by each data record is used as a virtual sector and each virtual sector is provided with a virtual sector distribution table; each sector distribution table comprises a business ID usdfor marking the business type and a business mark used for marking whether the marking data record belongs to data in the business or not. the method comprises the following steps: when the data record is written to physical zone blocks of the logic partition zones, firstly judging whether the data record is independent data or data in the business; and setting the business ID and the value for marking the business according to the judgment result. By adding information related with business processing in the virtual sector distribution table, the efficiency of the data in the same business can be kept consistent, thereby solving the problem of data inconsistency.

Description

technical field [0001] The invention relates to a Flash-based transaction processing method, in particular to a dynamic Flash transaction processing method, and belongs to the technical field of memory. Background technique [0002] As a storage medium, Flash is widely used in the storage field. The physical structure of Flash is divided into several physical blocks (Block), which are independent of each other. It has the following characteristics: (1) Due to the writing operation of Flash, the data bit can only be written from 1 to 0, and cannot be written from 0 to 1, so the erase operation must be performed before writing to the flash memory, and the pre-written data bit is initialized to 1, and the minimum unit of the erase operation is a block, not a single byte; (2) Flash (3) The block erasing time is relatively long; (4) During the use of Flash, some blocks may be damaged, and once a block is damaged, it cannot be repaired. Therefore, when using the traditional meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/06
Inventor 田友强
Owner HISENSE BROADBAND MULTIMEDIA TECH
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