Host end mapping method and device of SSD array, computer device and storage medium

A technology of computer equipment and mapping methods, applied in the direction of input/output process of computing, memory system, data processing, etc., can solve the problems of uneven wear, no concurrent write performance, no concurrent write performance, etc., to ensure concurrency, Meet the demand and ensure the effect of wear leveling

Pending Publication Date: 2019-12-24
SHENZHEN YILIAN INFORMATION SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing SSD array host-side mapping strategy adopts a simple fragmented static mapping strategy: For example, taking an array composed of two SSDs as an example, host LBA0/2/4/6... are mapped to Disk 1's LBA 0/ 1/2/3…; host LBA 1/3/5/7… are mapped to Disk 2’s LBA 0/1/2/3… in turn; since the host’s LBA writing may be random, for exam

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  • Host end mapping method and device of SSD array, computer device and storage medium
  • Host end mapping method and device of SSD array, computer device and storage medium
  • Host end mapping method and device of SSD array, computer device and storage medium

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Embodiment Construction

[0034] 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 some of the embodiments of the present invention, but not all of them. 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.

[0035] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0036] It should also be understood that the terminology used

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Abstract

The invention relates to a host end mapping method and device of an SSD array, a computer device and a storage medium. The method comprises the following steps of S1, creating a mapping table; S2, acquiring a request from a host; S3, performing read/write processing on the request of the host according to the mapping table to obtain a processing result; and S4, feeding back a processing result tothe host. By creating the mapping table, the logic spaces of different SSDs can be sequentially allocated for storing the write-in data of the host, so that any write-in data of the host can be written into each SSD of the SSD array in a balanced manner, the wear balance is guaranteed, the concurrency of the write-in performance is guaranteed, and the requirements can be better met.

Description

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Claims

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Application Information

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Owner SHENZHEN YILIAN INFORMATION SYST CO LTD
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