Incremental backup method for data blocks
A technology of incremental backup and data block, which is applied in the direction of data error detection, response error generation, input/output to record carrier, etc., which can solve the problem of occupying storage space and consuming huge comparison operation time. As well as problems such as processor resources and storage system numbers that cannot operate normally for a long time, it achieves good disaster recovery performance and saves storage space.
Inactive Publication Date: 2012-05-30
HUNAN ZHONGKE ELECTRIC
View PDF4 Cites 12 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in order to avoid changes in the current version of the file in the backup, it is still necessary to temporarily back up the current version of the file before the comparison, which takes up storage space
Moreover, when performing the incremental backup method in the prior art, it still needs to spend a huge amount of comparison calculation time and processor resources, which may cause the storage system to fail to operate normally for several hours during the incremental backup.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:
[0023] The detailed features and advantages of the present invention are described in detail below in the embodiments, the content of which is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the disclosed content, claims and accompanying drawings of this specification , any person skilled in the art can easily understand the related objects and advantages of the present invention.
[0024] In order to solve the traditional incremental backup (incremental backup) consumes a lot of calculation and time problems, a method for incremental backup of data blocks is proposed here, which is suitable for a storage device. Please refer to figure 1 , is a schematic diagram of an incremental backup file in an implementation exam...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to an incremental backup method for data blocks, which comprises the following steps of: continuously detecting an IO bus (input / output bus) which is connected with a storage device, wherein the storage device is provided with a plurality of data blocks; when a writing instruction for the storage device is detected by the IO bus, taking at least one data block corresponding to the writing instruction as a writing data block; writing the writing data in the writing instruction into the writing data block; updating an incremental backup file according to the writing instruction; and when a backup instruction is received, copying the incremental backup file into an appointed backup catalogue and serving as a secondary incremental backup, and initializing the incrementalbackup file.
Description
technical field [0001] The invention relates to an incremental backup method for data blocks, in particular to an incremental backup method for data blocks that can greatly reduce the time required for backup. Background technique [0002] Technologies of storage systems such as storage area network (Storage Area Network, SAN) are developed to serve multiple clients, and are especially widely used for storing enterprise data. The amount of enterprise data is not only huge, but also the content is extremely valuable, so it is a very important function for data backup. [0003] The most traditional backup method is to generate a backup file that is exactly the same as the original file, and save the backup file under a special directory. When the original file is accidentally deleted by the user due to unexpected factors such as hard disk failure or storage system crash, the user or the storage system can also find the backup file as a remedy. However, in order to save the o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06F11/14G06F3/06
Inventor 陈鹏陈志丰
Owner HUNAN ZHONGKE ELECTRIC