A data request processing method, apparatus, device and medium

By combining redundant independent disk array cards with host memory, the problem of insufficient RAID card cache capacity is solved, achieving efficient data access and improved storage performance, reducing latency and increasing hit rate.

CN122240024APending Publication Date: 2026-06-19SHANDONG YUNHAI GUOCHUANG CLOUD COMPUTING EQUIP IND INNOVATION CENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG YUNHAI GUOCHUANG CLOUD COMPUTING EQUIP IND INNOVATION CENT CO LTD
Filing Date
2026-03-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing RAID card has insufficient cache capacity, resulting in data access speeds that cannot meet the performance requirements of TB or PB level storage, low cache hit rate, and high latency.

Method used

By using redundant independent disk array cards to uniformly manage cache metadata and utilizing large-capacity host memory as a cache data storage area, cache metadata and cache storage data are decoupled, achieving separate storage of cache data. Host memory is used as a cache pool to improve cache capacity and hit rate.

Benefits of technology

Significantly improves data access speed, reduces latency, increases data hit rate, enhances the overall performance and reliability of the storage system, and reduces the access pressure on the hard drive.

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Abstract

This invention relates to the field of data processing technology, and in particular to a data request processing method, apparatus, device, and medium. The method includes: adopting a scheme of separating cached metadata and cached data; using a redundant independent disk array card to uniformly manage read cached metadata; and utilizing a large-capacity host memory as a cached data storage area to decouple cached metadata and cached data. When a user's data processing request hits a cache line node in the cache area of ​​the redundant independent disk array card, the redundant independent disk array card sends the cached data address corresponding to the hit target cache line node to the host. The host processes the cached data corresponding to the cached data address on the host. Data processing can be performed directly from the host memory. By using the host memory as a cache pool, the cache capacity is greatly increased, thereby improving the data hit rate and data access speed.
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