Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you about the role of the CVM data disk. The article is rich in content and analyzes and describes it from a professional point of view. I hope you can get something after reading this article.

The CVM has two hard disks, one of which is a system disk, which is used to store system data. One is a data disk, which is used to store other data.

If a CVM is compared to a computer, the data disk of the CVM is equivalent to the D disk of the computer, and the system disk is equivalent to the C disk of the computer. When the computer reinstalls the operating system, the content of disk C is certainly gone, but the content installed on disk D is still there and will not be lost.

Therefore, the function of the CVM data disk is that when the CVM initializes the system, the data of the data disk will not be lost with the system initialization.

If you are worried about the loss of the contents of the data disk, you can back up the data locally before reinstalling the system, and upload it to the CVM after installation.

For CVM, 20g data disk is given by default when purchasing, and you can choose the size of the data disk according to your own needs. If you have a large demand for data disk, you can choose cloud disk. Cloud disks are mounted in conjunction with elastic CVMs in the same cluster to achieve data storage and copy functions, thus effectively saving manual deployment costs. Three copies of data are written in real time, which can ensure rapid recovery in the event of any copy failure, effectively avoid physical security threats, and the data reliability is as high as 99.9999999%. Support flexible expansion at any time, cost-effective choice.

Cloud disk also provides snapshot protection, which provides data snapshot protection for nearly two days free of charge, effectively preventing data loss caused by viruses, hackers or misoperations, and making the data more secure.

The above is the role of the CVM data disk shared by the editor. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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