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Method and device for achieving data backup in memorizer

A data backup and storage technology, applied in the storage field, can solve the problems of increased cost and design complexity of external storage

Active Publication Date: 2013-05-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When implementing the data backup from the source Page to the destination Page in the above different Planes, the inventor found that there are at least the following problems in the prior art: the cost and design complexity are increased by the external memory

Method used

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  • Method and device for achieving data backup in memorizer
  • Method and device for achieving data backup in memorizer

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] On the one hand, an embodiment of the present invention provides a method for implementing data backup in a memory, wherein the memory includes: a storage array and internal registers; wherein the storage array includes: at least two storage planes, each of which stores A plane is composed of a plurality of storage blocks, and each storage block is composed of a plurality of storage pages; the storage plane corresponds to the internal register one by one...

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Abstract

The invention discloses a method and a device for achieving data backup in a memorizer, and relates to the technical field of storage. The method and the device for achieving the data backup in the memorizer are used for reducing cost and complexity of a design. The method for achieving the data backup in the memorizer comprises that a cross-plane data backup order is obtained, wherein the cross-plane data backup order comprises an address of a first storage page in a source storage plane and an address of a second storage page in a goal storage plane, and the source storage plane and the goal storage plane are different planes; a memorizer is controlled to read to-be-backupped data from the first storage page to a source internal register which corresponds to the source storage plane, and a first byte in the to-be-backupped data is controlled to be transmitted to an input / output (I / O) interface of the memorizer; and the memorizer is controlled to transmit the first byte to a goal internal register which corresponds to the goal storage plane through the I / O interface before the source internal register transmits a second byte in the to-be-backupped data to the I / O interface, and writes data in the goal internal register into the second storage page until the to-be-backupped data are all written into the second storage page.

Description

technical field [0001] The invention relates to the technical field of storage, in particular to a method and device for realizing data backup in a storage. Background technique [0002] NAND Flash is a non-volatile random access memory suitable for storing large-capacity data. It can be divided into single-level storage cells (Single Level Cell, SLC for short) and multi-level storage cells (Multi Level Cell, MLC for short) two types. NAND Flash mainly includes: internal registers and storage matrix. The storage matrix is ​​composed of several storage planes (Planes), each Plane is composed of several storage blocks (Blocks), each Block is composed of several storage pages (Pages), and each Page is composed of several bytes (Bytes) . Each Plane corresponds to an internal register. [0003] At present, when it is necessary to realize data backup from the source Page to the destination Page in different Planes, under the control of the controller, the memory first transfer...

Claims

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Application Information

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IPC IPC(8): G06F11/14G06F12/02
Inventor 周建华
Owner HUAWEI TECH CO LTD
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