Innogrit Technologies Co., Ltd.

Zining Wu

Gang Hu

Yuan-mao Chang

Xiaoli Rui

This application discloses a compression accelerator card, method of simulating hard disk mode to access the compression accelerator card. The method comprises: setting a compression identifier and sending a write command to a virtual compression hard disk by an application, and the write command is sent to a compression accelerator card via the virtual compression hard disk; compressing data by the compression accelerator card according to the compression identifier and caching the compressed data within the compression accelerator card, and returning a message to the application; setting a decompression identifier and sending a read command to the virtual compression hard disk by the application, the read command is sent to the compression accelerator card via the virtual compression hard disk, wherein the logical address corresponding to the read command is the same as the write command; and not decompressing the compressed data according to the decompression identifier by the compression accelerator card, and returning the compressed data to the application by the virtual compression hard disk. This application reduces CPU usage, minimizes changes to supporting software brought by migration from CPU compression to hardware compression, and reduces enterprise equipment cost.

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Shanghai, China

Zining Wu