RAID core computing device and method in SSD master control

A computing device and counter technology, applied in the direction of instruments, electrical digital data processing, etc., can solve the problem of no RAID core computing device and method, and achieve the effect of ensuring the correctness of data

CN110765043AActive Publication Date: 2020-02-07SHANDONG SINOCHIP SEMICON

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: SHANDONG SINOCHIP SEMICON
Publication Date: 2020-02-07

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Abstract

The invention discloses an RAID core computing device and method in SSD master control. The device comprises a state machine, a counter, a write address accumulator, a read address accumulator, an exclusive-OR operation unit, registers D1 to D6 and a dual-port SRAM, wherein RAID core calculation is realized by utilizing the state machine, the dual-port SRAM, the exclusive-OR operation unit and anaddress accumulator circuit unit. During working, the state machine outputs a read enable signal and a write enable signal to the dual-port SRAM according to the internal state, and the counter performs decreasing operation on the cycle index according to the number of data processing turns and transmits the decreasing operation to the state machine; and the write address accumulator and the readaddress accumulator send the real-time write address and the read address to the dual-port SRAM, and read-write of the dual-port SRAM is realized according to the state of the state machine. Accordingto the method, RAID calculation is realized in the SSD main control chip, so that SSD read-write data recovery is realized.

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Description

technical field

[0001] The invention relates to a RAID core computing device and method in SSD master control, belonging to the field of SSD data processing. Background technique

[0002] In the process of reading and writing to SSD, when reading data from Flash particles, if ECC error correction fails, and operations such as read re-try cannot read correct data, then it is necessary to consider how to restore data. RAID technology can give full play to the array advantages of storage chips, provide fault tolerance to ensure data security, and can continue to work in the event of a problem with a storage unit. That is to say, it is possible to recover the data read and written by the RAID data SSD. The existing RAID is all outside the SSD main control chip, and there is no RAID core computing device and method in the SSD main control chip. Contents of the invention

[0003] The technical problem to be solved by the present invention is to provide a RAID core calculation ...

Claims

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