Method for clearing disk space

Abstract

The invention provides a method for clearing disk space, and is suitable to clear the disk space of portable cloud storage. In a system comprising a portable cloud storage device, a host machine and a remote cloud storage server, the method comprises the following steps of identifying whether the file opened by a user is in a queue, wherein the queue is a filename queue used for saving the names of the files used by the user recently; if so, deleting the filename from the queue and executing the next step; if not, executing the next step; placing the filename in the end part of the queue; identifying whether the usage space of the currently used disk reaches or exceeds the preset clearing threshold, if so, executing the next step, if not, returning to finish; finding the file satisfying the preset condition according to the presetting rule, clearing one by one until the usage space of the currently used disk is smaller than a preset end clearing threshold. With the adoption of the method and the matched portable storage device and the remote cloud storage server, the local storage space can be effectively saved, the limited portable storage resource can be greatly utilized, and thus, the storage efficiency of the cloud storage can be increased.

Description

technical field [0001] The present application relates to a disk space cleaning method, in particular to a disk space cleaning method of a portable cloud storage device. Background technique [0002] In traditional storage, because data only exists on local devices, users cannot access data remotely; at the same time, users who have certain requirements for data disaster recovery levels need to spend a lot of money to purchase professional storage equipment and build complex and difficult-to-maintain storage systems. Cloud storage, through cluster applications, grid technology or distributed file systems, integrates a large number of different types of storage devices in the network to work together through application software, and jointly provide data storage and business access functions to the outside world. Then it solves the problems of users' remote data access and data disaster recovery. However, there are the following problems in cloud storage in practical applica...

AI Technical Summary

Problems solved by technology

However, there are the following problems in cloud storage in practical applications: 1. Low data security: user data may be leaked; 2. Data availability is limited: considering factors such as the network environment and the user's local environment, users may Cannot access the stored data; 3. Poor usability: does not conform to user habits

Images