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Solid-state disk and data processing method and system thereof

一种数据处理系统、固态硬盘的技术，应用在电数字数据处理、数据处理的输入/输出过程、运算中的冗余作数据的错误检测等方向，能够解决数据存留时间不可预测性、删除数据无法起到有效的检测和数据恢复、不提供删除数据备份和恢复功能等问题

Active Publication Date: 2018-06-15
DAPUSTOR CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, solid-state drives on the market mainly provide storage functions for data reading and writing, and do not provide backup and recovery functions for deleted data. Solid-state drive data backup and recovery mainly rely on the management of the upper operating system layer, application program layer or storage system layer and maintenance, although these upper-level management solutions can meet the needs of data backup and recovery under normal circumstances, but because they can be modified or disabled by system users with privileges, in this case, the user maliciously deletes data or the wrong operation causes the deletion of data The situation cannot play an effective detection and data recovery role
In addition, due to the garbage collection algorithm (Garbage Collection) and the TRIM deletion mechanism in the solid-state hard disk, the storage time of the data deleted by the operating system on the physical medium is unpredictable. Traditional data forensics and recovery technologies suitable for mechanical hard disks are being applied Unprecedented challenges in solid state drives

Method used

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  • Solid-state disk and data processing method and system thereof
  • Solid-state disk and data processing method and system thereof
  • Solid-state disk and data processing method and system thereof

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Embodiment Construction

[0039] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0040] The structure of the solid-state hard disk of the embodiment of the present application is basically the same as that of the prior art, and it includes a flash memory controller and a storage unit, such as Figure 4 As shown, in the embodiment of the present application, a pair of first storage area 100 visible to the operating system and a seco...

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Abstract

The invention discloses a solid-state disk and a data processing method and system thereof. The method comprises the following steps of: detecting an operation, for a first storage area visible to anoperation system, of a user on the solid-state disk; if the operation is a reading / writing operation, keeping data synchronization between the first storage area and a mirror image data storage area of a second storage area invisible to the operation system on the solid-state disk; and if the operation is a deletion operation or a TRIM operation, keeping data synchronization between the first storage area and the mirror image data storage area of the second storage area, and backing up data deleted from the first storage area to a deleted data storage area of the second storage area. Through the second storage area invisible to the operation system, the problem that data cannot be recovered due to malicious data deletion or wrong operation can be avoided, and by utilizing a flash memory controller, data backup and recovery can be carried out on data in the solid-state disk.

Description

technical field [0001] The invention relates to the technical field of solid-state hard disks, in particular to a solid-state hard disk and its data processing method and system. Background technique [0002] At present, solid-state drives on the market mainly provide storage functions for data reading and writing, and do not provide backup and recovery functions for deleted data. Solid-state drive data backup and recovery mainly rely on the management of the upper operating system layer, application program layer or storage system layer and maintenance, although these upper-level management solutions can meet the needs of data backup and recovery under normal circumstances, but because they can be modified or disabled by system users with privileges, in this case, the user maliciously deletes data or the wrong operation causes the deletion of data In some cases, it cannot play an effective detection and data recovery role. In addition, due to the garbage collection algorit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F11/1458G06F11/1469G06F11/1451G06F11/2056G06F11/2084G06F11/0787G06F11/0751G06F3/0622G06F3/0679G06F3/0644G06F3/065G06F3/0619G06F3/0652G06F11/0772G06F11/1068G06F11/3034
Inventor 尚宁陈祥
Owner DAPUSTOR CORP
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