Virtual Machines

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Virtual Machines

Image Overview

Image Definition

The image is a template for the instance running environment, including the operating system and pre-installed software and related configurations. You can launch any number of instances based on an image, or launch instances from any number of different images as required.

Main Role of Image

  1. Deploy Software Environment in Batches: Create an image based on the instances deployed with environment, and then create instances in batches based on this image. After the instance is created, it has the software environment as the same with that of the previous instance, which achieves the purpose of software environment deploying in batches.

  2. As a backup of the server's running environment: An image created based on an instance can be used to recover a damaged instance If this instance cannot run normally due to damaged software environment during subsequent use.

Update Time:2019-08-28 21:38:30