Data protection method and device
A data protection and data technology, which is applied in the direction of data error detection, response error generation, etc., to avoid waste of resources.
Inactive Publication Date: 2011-07-06
HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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Problems solved by technology
[0010] In view of this, the embodiment of the present invention provides a data protection method and device to solve the problem of starting when there is no data change or a small amount of change in the prior art Resource waste caused by snapshots
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Embodiment 1
[0100] The working process and working principle of the data protection device in Embodiment 1 and Embodiment 2 have been described in detail above, and will not be repeated here.
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The present invention provides a data protection method, including: setting LUN critical section; when data of the critical section changed, acquiring data variation; judging the data variation whether exceeding a default threshold or not, if the data variation exceeding the default threshold, starting snapshot. The invention also provides a data protector and a storage device of the data protector. The embodiment of the invetion divides part content in LUN into LUN critical section, starting quantitative tactics aiming at the critical section, in other words, snapshot is started only when the data variation exceeding the default threshold, when non-changing or changing lesser data in the critical section, the snapshot is not started to avoid wasting of resources.
Description
technical field [0001] The present invention relates to the technical field of data protection, and more specifically, to a data protection method and device. Background technique [0002] With the development of various businesses, the amount of data in the storage system is growing at an incredible rate, and the progress of business also puts forward higher requirements for data processing technology in terms of availability, reliability, and scalability. , data security is particularly important. [0003] Currently adopted data protection technologies are mainly backup and snapshot (snapshot). [0004] The Storage Network Industry Association (SNIA) defines a snapshot as: a snapshot is a fully available copy of a data object, which contains an image of the data object at a certain point in time. [0005] That is, the software quickly scans the data of the disk subsystem to be backed up, and establishes a snapshot logical unit number (Logic unit number, LUN) and a snaps...
Claims
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IPC IPC(8): G06F11/14
CPCG06F11/1461G06F2201/81G06F11/1451G06F2201/84
Inventor 谭祖靖张国彬耿伟华张鹏
Owner HUAWEI DIGITAL TECH (CHENGDU) CO LTD