Elastic Cloud Server (ECS) provides secure, scalable, on-demand computing resources, enabling you to flexibly deploy applications and workloads.

ECS application scenarios and types are provided to help you quickly select your desired type to match services. This facilitates rapid service migration to HUAWEI CLOUD

ECSs support self-service creation, modification, and operation. You can create an ECS by specifying its vCPUs, memory, OS, and login mode. After an ECS is created, you can modify its specifications if necessary. ECS works with other services to provide a reliable, secure, efficient computing environment.

• ECSs can be deployed in multiple availability zones (AZs) connected with each other through an internal network. If one AZ becomes faulty, other AZs in the same region will not be affected.
• With the Virtual Private Cloud (VPC) service, you can build your own dedicated network on the cloud. You can also set subnets and security groups within your VPC for further isolation. You can allow your VPC to communicate with the external network through an EIP (bandwidth support required). With the Image Management Service (IMS), you can use an image to create ECSs. Alternatively, you can use an existing ECS to create a private image and use the private image to create the same ECSs for rapid service deployment.
• Elastic Volume Service (EVS) provides storage space and Volume Backup Service (VBS) provides data backup and restoration functions.
• Cloud Eye lets you keep a close eye on the performance and resource utilization of ECSs, ensuring ECS reliability and availability.
• Cloud Backup and Recovery (CBR) backs up data for EVS disks and ECSs, and uses snapshots and backups to restore the EVS disks and ECSs.

Figure 1 System architecture