Data protection storage method and device and equipment
A data protection and data technology, applied in the storage field, can solve the problems of high requirements for the number of storage nodes and high cost, and achieve the effect of reducing the number of storage nodes and reducing costs
Pending Publication Date: 2021-11-02
MACROSAN TECH
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Problems solved by technology
It can be seen that although this method can support any M storage medium failures without affecting the reading and writing of object data, this method requires that the number of storage nodes used to store the data to be stored is at least greater than the number N of data blocks to be stored and the checksum The sum of the number of blocks M
This shows that the more data to be stored is cut into the data to be stored, the higher the requirement for the number of storage nodes, and the higher the cost accordingly
Method used
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[0056] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.
[0057] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...
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The invention provides a data protection storage method and device and equipment, and the method comprises the steps: determining the number K of storage nodes according to the determined number N of data blocks divided into to-be-stored data and the determined number M of verification blocks, determining the number of PNs, and building a mapping table, so as to map the PNs to storage media corresponding to the K storage nodes; and when the data are stored, determining a target PN by using the bucket name and the object name corresponding to the to-be-stored data, and storing the to-be-stored data according to the mapping relationship between the target PN and the storage medium. Visibly, according to the method, the number of the storage nodes required by the method for storing the to-be-stored data is the sum of the ratio of N to M which is rounded up and 1, so that any M storage medium faults can be supported without influencing the reading and writing of the object data, which is far less than the number of the storage nodes required in the prior art which is at least the sum of N and M, and, visibly, by applying the technical scheme provided by the embodiment, the number of storage nodes can be reduced, and the cost is reduced.
Description
technical field [0001] The present application relates to the storage field, and in particular to a data protection storage method, device and equipment. Background technique [0002] With the rapid growth of massive unstructured data, in the case of meeting the requirements of being able to quickly locate the object to be read from the massive data and ensuring the balanced writing capacity of the object data, and on the basis of controllable cost, the data redundancy In order to deal with the sudden failure of storage nodes or the sudden failure of storage media in distributed systems, higher requirements are put forward for redundancy. [0003] In order to make limited storage resources support higher redundancy, the prior art provides a data protection storage method, which cuts the data to be stored into N data blocks and M check blocks, and divides the cut data blocks into The sum check block is stored in the storage nodes, and the number of the storage nodes is requi...
Claims
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IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/064G06F3/0614
Inventor 柯丹丹沈泽宇高志远
Owner MACROSAN TECH