A method, device, equipment, and medium for destroying data

Abstract

The present application discloses a data destruction method, device, equipment, and medium, and relates to the technical field of data storage. The method includes: judging whether the target storage system is a trusted storage system; if the target storage system is not a trusted storage system, then Judging whether its own flash memory chip is a secret flash memory chip; if the flash memory chip is a secret flash memory chip, then adopting a self-destruct power supply mode to supply power to the secret flash memory chip to realize physical destruction of data. It can be seen that, after the application automatically detects that the target storage system is an untrusted system and the flash memory chip of the solid-state hard disk itself is a secret flash memory chip, it will supply power to the secret flash memory chip in a self-destruct power supply mode, and quickly damage the flash memory chip with high voltage. The secret-related flash memory chip can realize data destruction automatically, quickly, efficiently and thoroughly, and can still realize physical data destruction when the target storage system is powered off or the solid-state hard disk is plugged in and out.

Description

technical field [0001] The present application relates to the technical field of data storage, and in particular to a data destruction method, device, equipment, and medium. Background technique [0002] Solid State Drives (SSD, Solid State Drives) use Nand Flash memory (Nand Flash) as the storage medium, with high IOPS (IOPS, Input / Output Operations Per Second, the number of read and write operations per second), high bandwidth, high shock resistance, With the advantages of wide adaptability to the working environment, it is widely used in various industries such as commerce and industry. At the same time, modern society has higher and higher requirements for information security, requiring storage devices to support advanced features such as trusted boot, data encryption, and data destruction. The logical structure of common SSDs can be found in figure 1 As shown, the solid-state hard disk includes hardware such as a controller, Nand Flash memory (NandFlash), host interf...

AI Technical Summary

Problems solved by technology

The larger the storage capacity of the solid-state hard disk, the longer the erasure time of the entire disk, and there are problems of untimely data destruction and low destruction efficiency. Moreover, during the erasing process, if the solid-state hard disk is unplugged or the storage system is powered off, the data destruction operation cannot be performed. Complete, after removing the Nand flash memory from the solid-state drive, other methods can be used to recover valid data from the Nand flash memory, and the data destruction is not complete

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