Huawei Technologies Co., Limited

Chunhua Tan

Feng Wang

Qi Wang

Chen Wang

Hao Dong

Wei Zeng

Ding Li

Feng Xia

Liyu Wang

Weiqiang Jia

Jianlong Xiao

Fuquan Yang

Pengli Ji

Bingbing Li

Wenqiang Yang

Yonghui Huang

Example methods and apparatus for managing a storage system are described. The storage system includes a plurality of control nodes. One example method includes receiving a first operation request of a client by a first control node in the plurality of control nodes. The first control node creates a first object on a first storage node based on the first operation request.

Method for managing storage system, storage system, and computer program product

A cache space management method and apparatus are disclosed. In the method, first, a hit rate of the read cache of the storage system is obtained; and then, a size of the read cache and a size of the metadata cache are adjusted based on the hit rate of the read cache. In the foregoing technical solution, the size of the read cache and the size of the metadata cache are dynamically adjusted by using the hit rate of the read cache as a decision factor. For example, when the hit rate of the read cache is relatively high, the size of the read cache may be increased.

Cache space management method and apparatus

A method for controlling the data flow in the storage device is applied to a host, and includes obtaining a cache input and output parameter, determining whether the cache input and output parameter meets an overload condition, when the cache input and output parameter meets the overload condition, obtaining a first bandwidth value, where the first bandwidth value is less than a current flushing bandwidth value of the cache, determining a quantity of tokens based on the first bandwidth value, and controlling the data flow in the storage device.

Method and apparatus for controlling data flow in storage device, storage device, and storage medium

In a data prefetching method, a storage device obtains a first sequence stream length and a first access count of a target logical block after execution of a first data access request is completed. When a second data access request is received, the storage device modifies the first sequence stream length to a second sequence stream length and modifies the first access count to a second access count. The storage device further calculates a sequence degree of the target logical block based on the second sequence stream length and the second access count, and performs a data prefetching operation when the sequence degree of the target logical block exceeds a first prefetch threshold.

Data prefetching method and apparatus, and storage device

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Chengdu, China

Chunhua Tan