Method and module for storing and recovering data

Abstract

The invention discloses a data storage method and can recover data to an operation status before a crash happens. The method comprises the following steps: a basic recovery file is created when a file is created or opened; recovery identification codes are marked on the basic recovery file, file name and path information of the currently opened file are configured, thus generating a recovery file; operation steps are acquired and written into the recovery file in an incremental mode. The invention also discloses a data storage module and a data recovery method and module, according to the invention, each operation step can be stored in the incremental mode, thus providing a flexible recovery pattern and achieving recovery for any steps before a crash happens, furthermore, the invention only needs a copy file, thus saving disk space.

Description

technical field [0001] The present invention relates to a data recovery technology, in particular to a data preservation method and module, and a data recovery method and module. Background technique [0002] In various editing software, such as professional typesetting software and general word processing software, people often use these editing software to complete many complex and workload-intensive tasks, and sometimes multiple people are required to cooperate to complete the above-mentioned tasks. How to ensure that the work done by using these editing software will not let the editing work go to waste in the case of machine failure, software and operating system crash or even power failure. The above work is usually called data recovery, data recovery It's always a problem people want to solve. [0003] In the prior art, some software realizes data recovery by saving a copy of the document, and some realizes data recovery by automatically saving the file at regular in...

AI Technical Summary

Problems solved by technology

However, these data recovery methods have great flaws. For the case of saving copies of documents, if a disaster occurs during the preservation of these copies, then this situation itself is a disaster. Since this copy is wrong, it certainly cannot recovered

For the case of regular automatic disk saving, because the method of timing saving has a certain time interval, that is to say, if a disaster occurs before this time of saving, it can only be restored to the state of the last saving, and the time between the last saving and the occurrence of the disaster will be restored. All work cannot be resumed

Secondly, in order to ensure the recoverability of the document in the way of regular saving, it is necessary to use multiple copies to save the file, which wastes disk space, and the saving operation will cause the editor to suspend the operation, which will affect the editing efficiency. affect the mood of the editor

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