Operation Limitations of EBS Disks Created in Different Ways

Creation Method

Expansion after Creation

Mount

Unmount

Release

Yearly and monthly system disks created with ECS instances

Not supported

You do not need to mount the disks separately. The disks will be mounted to the cloud servers created by default.

Not supported

Releasing the disks on the console is not supported. The disks are released along with the ECS instance.

Yearly and monthly data disks created with ECS instances

Supported

You do not need to mount the disks separately. The disks will be mounted to the cloud servers created by default.

Not supported

Releasing the disks on the console is not supported. The disks are released along with the ECS instance.

Pay-per-use system disks created with ECS instances

Not supported

You do not need to mount the disks separately. The disks will be mounted to the cloud servers created by default.

Not supported

Releasing the disks on the console is not supported. The disks are released along with the ECS instance.

Pay-per-use data disks created with ECS instances

Supported

You do not need to mount the disks separately. The disks will be mounted to the cloud servers created by default. When the disks have been unmounted and wait to be mounted, you can mount them to other cloud servers.

Supported

The disks are not released along with the ECS instance by default. You can release them via the console. Meanwhile, you can modify the release method, and set them to be released along with the ECS instance.

Data disks created separately

Supported

You need to select the mounted ECS instances when creating the disks. When the disks have been unmounted and wait to be mounted, you can mount them to other cloud servers.

Supported

The disks are not released along with the ECS instance by default. You can release them via the console. Meanwhile, you can modify the release method, and set them to be released along with the ECS instance.

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