Method and storage array for processing a write data request

    公开(公告)号:US10042560B2

    公开(公告)日:2018-08-07

    申请号:US15449027

    申请日:2017-03-03

    Abstract: According to a write data request processing method and a storage array provided in the embodiments of the present invention, a controller is connected to a cache device via a switching device, an input/output manager is connected to the controller via the switching device, and the input/output manager is connected to a cache device via the switching device. The controller obtains a cache address from the cache device for to-be-written data according to the write data request, the controller sends an identifier of the cache device and the cache address to the input/output manager via the switching device, and the input/output manager writes the to-be-written data to the cache address via the switching device.

    DATA DEDUPLICATION SYSTEM AND METHOD IN A STORAGE ARRAY

    公开(公告)号:US20170177489A1

    公开(公告)日:2017-06-22

    申请号:US15449083

    申请日:2017-03-03

    Abstract: According to a data deduplication system and method for a storage array is provided in embodiments of the present invention, where a controller is connected to a cache device via a switching device, the cache device calculates an eigenvalue of a to-be-deduplicated data block, the controller queries an eigenvalue index set of data blocks according to the eigenvalue of the to-be-deduplicated data block, and when the same eigenvalue is not found, the controller sends a cache address of the to-be-deduplicated data block in the cache device to a controller of a target storage unit such as a hard disk drive, and the controller of the target hard disk reads the to-be-deduplicated data block from the cache address of the data block.

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