Images

Description

An image is a server template that contains an OS and necessary configurations. You can use an image to quickly create ECSs.

Images are classified into the following types:

Public image
A public image is a standard, widely used image. It contains an OS and preinstalled public applications and is available to all users. Public images are very stable and their OS and any included software have been officially authorized for use. If a public image does not contain the environments or software you need, you can use a public image to create an ECS and then deploy the required environments or software on it.
Private image
A private image is available only to the user who created it using an existing ECS or external image file. It contains an OS, preinstalled public applications, and the user's personal applications. Using a private image to create an ECS saves the time on repeated configurations.

For more information, see Creating a Private Image.
Shared image
A shared image is a private image another user has shared with you.

For more information, see Sharing Images.
KooGallery image
KooGallery is an online store where you can purchase third-party images that have the OS, application environments, and software preinstalled. You can use these images to deploy websites and application development environments in just a few clicks. No additional configuration is required.

Public Image Known Issues

FAQs

How Do I Set the DHCP Lease Time for a Windows ECS?

The DHCP client of Windows ECSs has a known issue. If the DHCP lease time is longer than 99 days, your ECSs cannot automatically renew the IP addresses. As a result, when the first lease expires, the network is disconnected.

This issue is involved in the following Windows image versions (including private images):

Windows Server 2008
Windows Server 2012 R2
Windows Server 2016
Windows Server 2019

To address this issue, perform the following operations:

The following operations will temporarily affect network connections. Stop services first or perform the operations during off-peak hours.

Set the DHCP lease time for the subnet where the Windows ECS resides to one day or an unlimited duration.
For details, see Viewing and Renewing the DHCP Lease (Windows ECS).
Run the following command to apply the setting:
ipconfig /renew

Can I Change a Linux ECS to a Windows ECS?

Yes, you can change the OS after purchasing an ECS.

To do so, switch to the Elastic Cloud Server page, locate the target ECS, and choose More > Manage Image > Change OS in the Operation column.

Can I Change the OS Language of a Windows ECS from English to Chinese?

Yes, you can change the OS language by changing the OS after purchasing an ECS.

On the Elastic Cloud Server page, locate the target ECS and choose More > Manage Image > Change OS in the Operation column. On the displayed page, select an image preinstalled with an OS in Chinese.

Will Data on Data Disks Be Lost After the OS Is Reinstalled or Changed?

No. Reinstalling or changing the OS does not affect data on data disks. However, this operation will clear the data in all partitions of the ECS system disk. Back up data before reinstalling or changing the OS.

What Are the Differences Between Different Windows Versions?

Standard Edition: is oriented to small and medium enterprises. It also provides Windows Server functions and is the most commonly used version.
Enterprise Edition: is oriented to large enterprises and applicable to servers running SQL Server Enterprise Edition and Exchange Server.
Datacenter Edition: is oriented to ultra-large enterprises and applicable to highly virtualized data centers and cloud environments.