Data storage system, data storage method and pcm bridge

A data storage system and data storage technology, applied in the direction of memory address/allocation/relocation, input/output to record carrier, etc., can solve the problem of file system load waste, etc., to increase system life, accelerate data access, and improve operation efficiency effect

Active Publication Date: 2017-10-17
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] This embodiment provides a data storage system, a data storage method, and a PCM bridge, which are used to solve the problem of waste of file system load caused by reading and writing NAND Flash in the prior art

Method used

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  • Data storage system, data storage method and pcm bridge
  • Data storage system, data storage method and pcm bridge
  • Data storage system, data storage method and pcm bridge

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Embodiment Construction

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0059] In a traditional DRAM&Flash / HDD-based storage system, the memory is volatile at high speed, and the storage is relatively low-speed non-volatile. There is an insurmountable gap between the two. PCM has read or write latency close to DRAM and excellent graded Scale capability, indicating its potential for capacity expansion, and also has Byt...

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Abstract

Embodiments of the present invention provide a data storage system, a data storage method, and a PCM bridge. The system includes: a processor, a memory controller, a phase-change memory PCM bridge, and a phase-change memory PCM. The processor is connected to the PCM bridge through the memory controller. , the PCM bridge is connected to the PCM, and non-volatile small data is stored in the PCM, and the PCM bridge is used to receive the first operation signal for reading or writing small data from the CPU through the memory controller, and convert the first operation signal A second operation signal capable of reading or writing to the PCM is formed to read small data in the PCM or write small data in the PCM through the second operation signal. The data storage system, the data storage method and the PCM bridge provided by the embodiments of the present invention can be read or written bit by bit by using the PCM, which improves the operation efficiency, increases the life of the system, and accelerates the ability of data access.

Description

technical field [0001] The embodiments of the present invention relate to data storage technologies, and in particular to a data storage system, a data storage method and a PCM bridge. Background technique [0002] In the storage architecture composed of traditional NAND flash memory NAND Flash, when data is written into NAND Flash in the storage system, NAND Flash needs to be read to Dynamic Random Access Memory (Dynamic Random Access Memory, hereinafter referred to as: DRAM), modified in DRAM, and then The process of writing back to NAND Flash; during the writing process, metadata Metadata and user data Userdata are written into NAND Flash together. Metadata Metadata is usually stored in NANDMetadata block, because the size of metadata Metadata is generally smaller than that based on NAND Flash storage The minimum block size of the file system and frequent updates, on the one hand, cause additional management overhead of NAND Flash, on the other hand, it also increases the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02G06F3/06
Inventor 许焰李挺
Owner HUAWEI TECH CO LTD
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