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How to replace the system disk and expand the disk capacity to expand the disk capacity? I believe that many inexperienced people are at a loss about this, so this article summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

Overview of cloud disk expansion

With the development of your business, you can expand the capacity of the cloud disk at any time. Depending on the purpose of the cloud disk, you must use different features:

Expand the system disk: use the function of replacing the system disk.

Expand the data disk: use the disk expansion function.

Capacity limit

The capacity limit of cloud disk expansion varies with different uses.

System disk

When the capacity of the system disk is changed by changing the system disk function, the capacity can only be kept unchanged or increased, but the capacity cannot be reduced. For example, a CentOS instance has a system disk capacity of 35 GiB before capacity expansion, and at least 35 GiB after the system disk is replaced. The minimum capacity that can be set during capacity expansion is related to the current capacity and image of the system disk, as shown in the following table.

Data disk

When you change the capacity of the data disk through the disk expansion function, you can only keep the capacity unchanged or increase the capacity, not reduce the capacity. The upper limit of data disk expansion varies depending on the type of cloud disk, as shown in the following table.

Capacity expansion operation

You can do the following:

To expand the system disk of an instance, please see the system disk.

When a cloud disk is used as a data disk, to expand the data disk of a Windows instance, please see expand data disk _ Windows.

When a cloud disk is used as a data disk, to expand the data disk of a Linux instance, please see expand data disk _ Linux.

After reading the above, do you know how to replace the system disk and expand the disk capacity to expand the disk capacity? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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