Full flash memory system based on ZNS solid state disk and address mapping method

A technology for solid-state drives and storage addresses, which is applied in all-flash systems and address mapping fields, and can solve the problems of not taking into account the characteristics of solid-state drives, performance loss, and aggravating the wear and tear of solid-state drives.
CN114546296AActive Publication Date: 2022-05-27武汉麓谷科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
武汉麓谷科技有限公司
Publication Date
2022-05-27

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Abstract

The invention provides a full flash memory system based on a ZNS solid state disk and an address mapping method, the system comprises at least one ZNS solid state disk, and the physical storage space of the at least one ZNS solid state disk comprises a mapping area and a data area; wherein the mapping area is used for storing an object FTL mapping table; the object FTL mapping table is used for establishing a mapping relation between the target object and the corresponding physical address; the target object comprises any storage system operation unit constructed on the full flash memory system; the data area is virtualized into a continuous storage address space and is used for storing data. According to the full flash memory system based on the ZNS solid state disk and the address mapping method provided by the embodiment of the invention, the problem of multi-write amplification caused by the interior of the SSD, the interior of the full flash memory system and the application can be eliminated, the mapping mode based on the object can adapt to a complex scene with mixed different loads, and meanwhile, the design of the whole storage system is simplified.
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Description

Technical field

[0001] The present invention relates to the ZNS solid state drive field, particularly to a ZNS solid state drive based on the all-flash system and address mapping method. Background

[0002] In the era of big data, the performance of traditional mechanical hard disks can not meet the needs of enterprise-level storage due to mechanical structure problems, and the solid-state hard disks with semiconductor flash memory chips as the storage medium have brought revolutionary progress to the storage system and become a substitute for traditional disks. With the enterprise storage system itself on the data capacity and throughput of the requirements are getting higher and higher, a single solid-state drive is increasingly unable to meet the needs of the current enterprise-class storage system, all-flash storage technology, especially based on disk array technology developed from the all-flash array technology, to one or more solid-state drives, to provide large capacity,...

Claims

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