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Method and architecture for caching applications using degraded flash memory die, solid state drive

A solid-state drive and high-speed cache technology, which is applied in the high-speed cache system field, can solve problems such as high infrastructure costs, overkill and low price, and achieve the effect of reducing infrastructure costs

Active Publication Date: 2021-03-02
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, general-purpose flash SSDs are overkill and expensive for use as caching devices
Data centers often use large numbers of flash SSDs, resulting in unnecessarily high infrastructure costs

Method used

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  • Method and architecture for caching applications using degraded flash memory die, solid state drive
  • Method and architecture for caching applications using degraded flash memory die, solid state drive
  • Method and architecture for caching applications using degraded flash memory die, solid state drive

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Embodiment Construction

[0018] Reference will now be made in detail to several embodiments. While the subject matter will be described in conjunction with alternative embodiments, it will be understood that they are not intended to limit the claimed subject matter to these embodiments. On the contrary, the claimed subject matter is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the claimed subject matter as defined by the appended claims.

[0019] Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of claimed subject matter. However, one skilled in the art will recognize that the embodiments may be practiced without these specific details or their equivalents. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects and features of the present subject m...

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Abstract

The present invention discloses a method and apparatus for using low-cost non-qualified die suitable for SSD cache applications in SSD caches. Embodiments of the present invention enable the production of caching die SSDs with sufficient data retention and endurance to meet the demands of modern data centers while reducing infrastructure costs. One embodiment discloses a method of identifying and using low cost non-qualified die suitable for SSD cache applications in SSD cache. The method includes extracting application data from an SSD cache application, modeling behavior of the SSD cache application based on the application data, characterizing a first non-qualified die to determine at least one quantitative attribute of the first non-qualified die, and targeting the SSD The modeling activity of the cache application tests the at least one quantified characteristic of the first non-qualified die to determine whether the non-qualified die is suitable for the SSD cache.

Description

[0001] This application claims the priority of the U.S. invention patent application submitted to the U.S. Patent and Trademark Office on March 18, 2016, the application number is 15 / 074961, and the invention title is "METHOD AND SYSTEM FOR USING DOWNGRADED FLASH DIE FOR CACHE APPLICATIONS", the entire content of which Incorporated in this application by reference. technical field [0002] Embodiments of the invention relate generally to the field of flash memory. More specifically, embodiments of the invention relate to systems and methods for using degraded flash die as a cache. Background technique [0003] In the field of data storage, there is an increasing need to reduce the cost of implementing cache storage solutions to better meet the huge demand for cache in modern hyperscale data centers. Tiered storage solutions attempt to strike a balance between the performance needs and data retention requirements of modern data centers. For example, one exemplary hierarchic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C29/50G11C29/00
CPCG11C29/50G11C29/886G11C2029/5002G06F12/0866G11C29/88G06F2212/466G11C2029/0411G11C29/42G11C29/44G06F2212/214G06F2212/222G06F2212/281G06F2212/313
Inventor 李舒
Owner ALIBABA GRP HLDG LTD