How to mount a separately created cloud disk (used as a data disk) to an ECS instance

This article introduces how to mount a separately created cloud disk (used as a data disk) to an ECS instance, focusing on the specific operation steps.

Mount cloud disk

You can mount a separately created cloud disk (used as a data disk) to an ECS instance. You can choose to mount the cloud disk from the instance management page or mount the cloud disk from the cloud disk management page.

Notes

Before mounting the cloud disk, you need to understand the following precautions:

Created with the instance The cloud disk does not need to be mounted.

You can only mount cloud disks used as data disks, and there is no need to mount cloud disks used as system disks.

When mounting a cloud disk, the instance must meet the following conditions:

The instance status must be Running or Stopped, and cannot be Locked.

Instances are not in arrears.

When mounting a cloud disk, the status of the cloud disk must be Available.

Cloud disks can only be mounted to instances in the same availability zone in the same region and cannot be mounted across availability zones.

One ECS instance can mount up to 16 cloud disks for data disk use. At the same time, one cloud disk can only be mounted on one instance.

Independently created cloud disks can be mounted to any instance in the same availability zone in the same region (including prepaid and pay-as-you-go instances).

Prerequisite

You have created ECS instances and cloud disks in the same availability zone. For detailed operations, see Step 2 of Creating a Cloud Disk and Personal Edition Quick Start: Create an ECS Instance.

Mount cloud disks on the instance management page

#To mount multiple cloud disks on an ECS instance, go to the instance management page The page operation is more convenient. Follow the steps below to mount the cloud disk on the selected instance:

Log in to the ECS management console.

In the left navigation bar, click Instances.

Select a region.

Find the instance to which the cloud disk needs to be mounted and click the instance ID.

In the left navigation bar, click the instance disk, and click Mount Cloud Disk in the upper right corner of the disk list.

In the pop-up dialog box, complete the following settings:

Target disk: Only cloud disks in the same availability zone with a status of "pending to be mounted" can be selected.

The disk is released with the instance: If selected, when the instance is released, the cloud disk will also be released at the same time.

Automatic snapshots are released with the disk: If selected, when the cloud disk is released, all automatic snapshots created by the cloud disk will be released together, but manual snapshots will not be released. It is recommended that you do not select this option and keep the backup data.

After completing the settings, click OK and click to execute the mount.

Refresh the disk list of this instance.

If the status of the cloud disk changes to In use, it means the mounting is successful.

Depending on the contents of the cloud disk and the operating system of the ECS instance, you must perform different operations to make the cloud disk available. As shown in the table below.

Mount the cloud disk on the cloud disk management page

If you want to mount multiple cloud disks To download to different ECS instances, it is more convenient to operate on the cloud disk management page. Follow the steps below to mount the selected cloud disk to the instance:

Log in to the ECS management console.

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

Select a region.

Find the cloud disk to be mounted, and in the Operation column, select More > Mount.

In the pop-up dialog box, complete the following settings:

Target instance: Only ECS instances in the same availability zone can be selected.

The disk is released with the instance: If selected, when the instance is released, the cloud disk will also be released at the same time.

Automatic snapshots are released with the disk: If selected, when the cloud disk is released, all automatic snapshots created by the cloud disk will be released together, but manual snapshots will not be released. It is recommended that you do not select this option and keep the backup data.

After completing the settings, click to execute the mount.

Refresh the cloud disk list.

If the status of the cloud disk changes to In use, it means the mounting is successful.

Depending on the contents of the cloud disk and the operating system of the ECS instance, you must perform different operations to make the cloud disk available. As shown in the table below.

Follow-up operations

After using the cloud disk for a period of time, according to business needs, you can perform the following Different operations:

You can restore the cloud disk to its initial state by reinitializing the cloud disk.

If you need a larger capacity cloud disk, you can expand it. For specific operations, see Expanding Data Disk_Linux or Expanding Data Disk_Windows.

You can back up cloud disk data by creating a snapshot. Alternatively, set an automatic snapshot policy for the disk and create automatic snapshots.

If you need to restore the cloud disk to its state at a certain moment, you can use a snapshot to roll back the cloud disk.

If your instance no longer requires a cloud disk, you can unmount the cloud disk and release the cloud disk to avoid unnecessary costs.

Related API

AttachDisk

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