Cached Images

Scenarios

When you use an image provided by IMS to create an ECS in an edge AZ for the first time, the image will be automatically cached at the edge site and occupy the storage space of CloudPond. When you want to create an ECS later, the image cached at the edge site will be used. This shortens the time required for creating the ECSs.

You can manage cached images on the CloudPond console.

Constraints and Limitations

• Encrypted images cannot be used to create ECSs or cached at edge sites.
• Cached images will be automatically deleted if corresponding images in IMS are changed.

  If you want to use changed images at edge sites, use these images to create ECSs in the corresponding edge AZs.

Viewing Cached Images

1. Log in to the management console.
2. Click in the upper left corner and select a region.
3. Click . In the service list displayed, choose Content Delivery & Edge Computing > CloudPond, or enter CloudPond in the search box.

   The dashboard is displayed.

4. In the left navigation pane, choose Edge Sites.
5. Click the edge site name. On the edge site details page, click Cached Images.
6. On the Cached Images tab page, view the images that have been cached.

   Table 1 Parameter description

   Parameter	Description
   Image Name	Name of the cached image, which is the same as the image name in IMS.
   Status	Four statuses: Available, Creating, Downloading, or Deleting Available: The image has been cached in CloudPond. . Creating: The image is being created in IMS. After the creation is complete, the status changes to Downloading. Downloading: The image is being downloaded from IMS to CloudPond. After the download is complete, the status changes to Available. Deleting: The cached image is being deleted. Deleting a cached image will not delete the original image in IMS. After the cached image is deleted, you can still find the image on the IMS console and use it to create an ECS in the edge AZ. If the status remains Deleting for a long time, contact the Huawei Cloud O&M team.
   OS	OS of the image.
   Image Type	Images are classified into public images, private images, and shared images. For details about their differences, see How Do I Select an Image?
   Subtype of the image.	There are three options: system disk image, data disk image, and full-ECS image.
   Disk Capacity (GiB)	Disk space required for running the image.
   Cached	Time when the image in IMS was cached to CloudPond.
   Operation	Click Delete to delete the cached image.

Creating a Cached Image

1. Log in to the management console.
2. Click in the upper left corner and select a region.
3. Click . In the service list displayed, choose Content Delivery & Edge Computing > CloudPond, or enter CloudPond in the search box.

   The dashboard is displayed.

4. In the left navigation pane, choose Edge Sites.
5. Click the edge site name. On the edge site details page, click Cached Images.
6. Click Cache Image.
7. In the dialog box that is displayed, select the type of the image.
   

   For public images, select an OS and its version.

8. Select a disk type and click OK.

Deleting a Cached Image

1. Log in to the management console.
2. Click in the upper left corner and select a region.
3. Click . In the service list displayed, choose Content Delivery & Edge Computing > CloudPond, or enter CloudPond in the search box.

   The dashboard is displayed.

4. In the left navigation pane, choose Edge Sites.
5. Click the edge site name. On the edge site details page, click Cached Images.
6. Locate the image you want to delete and click Delete in the Operation column.
7. Confirm the information and click Yes.
   • Deleted images cannot be recovered.
   • Deleting a cached image will not delete the corresponding IMS image. You can still use the image to create ECSs in the edge AZ on the IMS console.