Data processing method and device of SSD hard disk
A data processing device and data processing technology, applied in the field of information processing, can solve problems such as slow data repair speed, achieve the effect of reducing read operations and speeding up repair speed
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Embodiment 1
[0045] The embodiment of the present application provides a data processing method of an SSD hard disk, figure 1 It is a schematic flowchart of a data processing method for an SSD hard disk in an embodiment of the present invention. Such as figure 1 As shown, the method includes:
[0046] Step 110: Obtain rebuild command;
[0047] Specifically, the rebuild process is a process of repeatedly updating the data guided by the mapping table. Therefore, the same physical block may be repeatedly looked up in the table for timestamp comparison. If it is read from NAND every time, the read operation takes a long time, so this embodiment of the present application provides a method for caching lpnlist.
[0048] Step 120: use the first part in the memory as a cache area for rebuild;
[0049]Step 130: cache the lpnlist information obtained in the rebuild process in the cache area;
[0050] Specifically, in step 120 and step 130, for the scene of abnormal power failure of the SSD hard...
Embodiment 2
[0062] Based on the same inventive concept as the data processing method of an SSD hard disk in the foregoing embodiments, the present invention also provides a data processing device for an SSD hard disk, such as figure 2 shown, including:
[0063] A first obtaining unit 11, the first obtaining unit 11 is used to obtain a rebuild instruction;
[0064] The first cache unit 12, the first cache unit 12 is used to use the first part in the memory as a cache area for rebuilding;
[0065] The second cache unit 13, the second cache unit 13 is used to cache the lpnlist information obtained in the rebuild process in the cache area;
[0066] A second obtaining unit 14, configured to obtain the lnplist information from the cache area when the lpnlist information needs to be read again.
[0067] Further, the device further includes: the lpnlist information includes first lpnlist information and second lpnlist information, wherein the first lpnlist information is read by the rebuild pr...
Embodiment 3
[0079] Based on the same inventive concept as the data processing method of an SSD hard disk in the foregoing embodiments, the present invention also provides a data processing device for an SSD hard disk, on which a computer program is stored, and when the program is executed by a processor, the aforementioned A step in any method of a data processing method for an SSD hard disk.
[0080] Among them, in image 3 In, bus architecture (represented by bus 300), bus 300 may include any number of interconnected buses and bridges, bus 300 will include one or more processors represented by processor 302 and various types of memory represented by memory 304 circuits linked together. The bus 300 may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein. The bus interface 306 provides an interface between the bus 300 and the receiver 301 and...
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