Access method and system for multi-user hard disk data

Abstract

The invention is applied in the technical field of computers, and provides an access method and an access system for multi-user hard disk data. The method comprises the following steps of: controlling a virtual machine monitor to initialize a computer hard disk, and controlling creation and management of a hard disk user subarea; controlling the virtual machine monitor to monitor the access request of hardware resource input / output of an operating system; when the input / output access request is monitored, acquiring an initial position and an end position of the accessed user subarea and hard disk access offset; adding the hard disk access offset to an access address corresponding to the access request of the hardware resource input / output of the operating system to acquire an actual address of hard disk data access; and feeding back the hard disk data of the actual address to the operating system. Creation and management of the hard disk multi-user subarea and data access are realized, the data in the hard disk subarea are mutually isolated, the use of users is convenient, and the security of the system can be effectively ensured by offsetting the address on the physical hard disk.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a multi-user hard disk data access method and system. Background technique [0002] With the increase of computer popularization rate, information security has become very important, so the security of the hard disk, which is the key carrier of information in the computer system, has become very prominent. [0003] When multiple users use the same computer, or when it is necessary to deploy multiple operating systems with different security levels on the hard disk, it becomes a trend to deploy systems with different security levels in mutually isolated hard disk partitions. Hard disk user partitions cannot be realized, so that the data in the hard disk partitions are isolated from each other, and the access to the hard disk user partition data is not safe, which is inconvenient for users to use. Contents of the invention [0004] The purpose of the embodiments of...

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method for accessing multi-user hard disk data, aiming at solving the problem that the existing technology cannot implement partitioning of hard disk users, make the data in the hard disk partitions mutually isolated, and access the hard disk data of each partition of the user unsafe question

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