How to uninstall a cloud disk under the Linux operating system and precautions for uninstalling a cloud disk

Based on the introduction, this article focuses on how to uninstall the cloud disk and the precautions for uninstalling the cloud disk under the Linux operating system, focusing on the specific operation steps.

Uninstall the cloud disk

When the pay-as-you-go cloud disk is used as a data disk, you can uninstall the cloud disk. However, when the cloud disk is used as the system disk, you cannot unmount the system disk.

When uninstalling a cloud disk, you need to pay attention to the following:

You can only uninstall a pay-as-you-go cloud disk with the status of In Use and the disk attribute of Data Disk.

Cannot unmount local storage.

Under the Windows operating system, you need to pay attention to the following:

In order to ensure data integrity, it is recommended that you suspend read and write operations on all file systems of the disk, otherwise the read and write operations will not be completed. data will be lost.

Before unmounting the cloud disk on the ECS console, you must first remotely connect to the instance and perform offline operations on the disk in Disk Management.

Under the Linux operating system, you need to pay attention to the following:

Before unmounting the cloud disk on the ECS console, you must first remotely connect to the instance and run the umount command to unmount the disk partition.

If you have set up the disk partition in the /etc/fstab file to automatically mount the disk partition when starting the instance, you must first delete the disk partition’s mounting information in the /etc/fstab file before unmounting the cloud disk. , otherwise you will not be able to connect to the instance after it is restarted.

You can uninstall the cloud disk in different ways according to your needs, as shown in the following table.

Uninstall a cloud disk on the instance management page

You can uninstall a cloud disk on the instance management page One or more cloud disks mounted on the instance.

Prerequisite

The cloud disk has been mounted to the instance and the status is in use.

If you are uninstalling a cloud disk on a Linux instance and the disk partition mounting information has been written in the /etc/fstab file, you must first delete this configuration information.

Operation steps

Unmount the cloud disk on the instance management page, follow the steps below:

Connect to the instance remotely, and unmount the disk or partition inside the instance . Depending on the operating system, you need to perform different actions, as shown in the table below.

Log in to the ECS management console.

In the left navigation bar, click Instances.

Select a region.

Find the instance that needs to be operated, click the instance ID, and enter the instance management page.

In the left navigation bar, click this instance disk.

Find the cloud disk that needs to be uninstalled, and in the Action column, select More > Uninstall.

Cloud disks that support uninstallation must have the following attributes:

The disk status must be in use.

Uninstallable must be supported.

Disk attribute must be data disk.

In the pop-up dialog box, click to confirm the uninstallation.

(Optional) If you need to uninstall multiple cloud disks, repeat steps 7 and 8.

When the status of the cloud disk changes to "To be mounted", it means that you have successfully unmounted the cloud disk.

Uninstall a cloud disk on the cloud disk management page

You can uninstall a cloud disk from an instance on the cloud disk management page.

Prerequisite

The cloud disk has been mounted to the instance and the status is in use.

If you are uninstalling a cloud disk on a Linux instance and the disk partition mounting information has been written in the /etc/fstab file, you must first delete this configuration information.

Operation steps

To uninstall the cloud disk on the cloud disk management page, follow the steps below:

Remotely connect to the instance and unmount the disk inside the instance or Partition. Depending on the operating system, you need to perform different actions, as shown in the table below.

Log in to the ECS management console.

In the left navigation bar, select Storage > Cloud Disk.

Select a region.

Find the cloud disk that needs to be uninstalled, and in the Action column, select More > Uninstall.

Cloud disks that support uninstallation must have the following attributes:

The disk status must be in use.

Uninstallable must be supported.

Disk attribute must be data disk.

In the pop-up dialog box, click to confirm the uninstallation.

When the status of the cloud disk changes to "To be mounted", it means that you have successfully unmounted the cloud disk.

Related API

DetachDisk

Follow-up operations

If you no longer need the cloud disk, you can release the cloud disk.

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