Storart Technology Co., Ltd.

Hou Yun Lee

Jui Hui Hung

A method and a controller for recovering data in event of a program failure and a storage system using the method and the controller are disclosed. The controller includes main units of a parity generator, a volatile memory module and a processor. With a parity in the volatile memory module and successfully programmed sub-data, a program failed write data can be recovered and correctly programmed. The method of the present invention has advantages of saving use of storage resources and extending lifetime of the storage system than other methods for recovering data in event of a program failure.

Method and controller for recovering data in event of program failure and storage system using the same

A SSD and a method for reducing use of DRAM in the SSD are disclosed. The method includes the steps of: A. providing a referring table in a DRAM module of a SSD; B. providing a logical-to-physical address table in the DRAM module; C. receiving a command for accessing a target data in a target logical address of the SSD; D. checking if one physical address is stored in the logical-to-physical address table; E. executing the command by using the mapping data in the subgroup or copying a corresponding subgroup including one mapping data for the target logical address from the mapping table to the DRAM module via the referring table; and; and F. adding a target physical address of the DRAM module where the mapping data for the target logical address is stored to the logical-to-physical address table so that the target logical address is able to correspond thereto.

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Hsinchu, Taiwan

Hou Yun Lee