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This article shows you how to achieve cloud storage, the content is concise and easy to understand, can definitely brighten your eyes, through the detailed introduction of this article, I hope you can get something.

The application of cloud storage solves many disadvantages and loopholes in traditional storage methods, and the realization of cloud storage is inseparable from the key technologies of disaster recovery. Here we introduce the key technical principles of implementing cloud storage.

1. Mapping technology

Mapping technology is the core technology to realize information storage. Tracking mapping technology is very critical. In general, a mapping relationship will be formed between the processor and the management device program in the cloud storage environment. This management can directly affect the application of disaster recovery system.

One is automatic data migration, the application of this method is triggered by an event, and the trigger event also includes a series of events, such as disk capacity expansion, reduction, disk damage, maintenance, disk saturation, filling, and so on. once this event is triggered, the relevant files will be mapped directly according to the instructions of the system, that is, the so-called self-saving, copying, pasting and deleting.

The second is disk transparent replacement, the application of this method is that users first create a cloud storage environment, in which the relevant mapped data is backed up by multiple copies on the disaster recovery server, and copies are constantly created in the process of backup to prevent the disk from being restored after damage.

The third is the disk capacity adjustment. When this method is applied, there are two situations. One is to expand the capacity. When this happens, it is mainly because the cloud disk has been fully loaded and the new disk needs to be loaded. Then modify the capacity of the cloud disk, and the other is to reduce the capacity. In this case, you can simply remove the excess disk. There is no need for capacity modification.

2. Caching technology

Cache technology is the core technology of storage hierarchical mechanism, the core idea of this technology refers to the effective application of cache to disaster recovery system through accurate calculation. In general, cache is mainly used to achieve fast backup and recovery of data, and to restore the relevant frequency in a certain process.

The caching algorithm for the key technologies of disaster recovery in cloud storage environment mainly has the following two aspects: one is the local disaster recovery disk saturation calculation, which counts the number of data recovery per unit time. Then the M data blocks with the least number of times are replaced: the second is the remote data information recovery calculation, which is the number of recovery times per unit time of the data block. Whether the remote data block is replaced or not is selected according to the number of calculations.

3. Disk technology

With the application of disk technology, the content shown in the file form is similar to that of other technologies, and the state of information storage in the cloud storage environment is also similar.

Usually, the client agent is used to store the relevant data into the data block, and the folder is backed up and stored in the disaster recovery server. Once the user needs to access the content, the backup content can be provided first, and the corresponding decryption key can be provided, so that the user can change, correct, delete and update the content. If the user is unable to open the information through the decryption key, then the correct relevant information will be provided to update and decrypt, which effectively ensures the security of the server.

Cloud disk provides elastic expansion, stable and reliable, low-latency persistent data storage service for elastic CVM, which can be used as an independent hard disk. Support flexible expansion at any time, is a cost-effective choice.

The above content is how to implement cloud storage. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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