An Elastic Cloud Server (ECS) is a basic computing unit that consists of vCPUs, memory, OS, and Elastic Volume Service (EVS) disks.
You can create an ECS by specifying its vCPUs, memory, specifications, OS, network, and login mode. After creating an ECS, you can use it on the cloud like
using your local PC or physical server. You can also modify its specifications if necessary. ECS lets your applications run in a reliable, secure, efficient computing
environment.
Why ECS?
● Rich specifications: A variety of ECS types with custom specifications are available for different scenarios. ● Various image types: Public, private, and shared images are available for you to choose from. ● A broad range of disk types: High I/O, general-purpose SSD, extreme SSD, general-purpose SSD V2, and ultra-high I/O disks are provided to meet the requirements of different service scenarios. ● Flexible billing modes: You have the flexibility to choose from yearly/monthly, spot pricing, and pay-per-use. ● Reliable data: High-throughput virtual block storage uses the distributed architecture to ensure high availability and it can be scaled out as needed. ● Security protection: The network is isolated and protected using security group rules. Security services, such as Anti-DDoS, Web Application Firewall (WAF), and Vulnerability Scan Service (VSS) can also be used to further enhance ECS security. ● Auto scaling: Elastic computing resources can be automatically adjusted to suit your needs. ● Efficient O&M: ECSs can be efficiently managed through the management console, remote terminals, or APIs with full rights. ● Cloud monitoring: Cloud Eye samples monitored metrics in real time, generates alarms for issues identified, and immediately notifies related personnel. ● Load balancing: Elastic Load Balance (ELB) evenly distributes incoming traffic across ECSs to prevent overload on an
Huawei GaussDB
System Architecture
ECS works with other products and services to provide computing, storage, and network resources.
● You can deploy ECSs across different availability zones (AZs) that are connected over an intranet. If one AZ becomes unavailable, ECSs in other AZs can continue to provide services. ● Virtual Private Cloud (VPC) helps you build your own dedicated network on the cloud. You can set subnets and security groups within your VPC for further isolation. You can also bind an EIP to your ECSs for Internet access. ● Image Management Service (IMS) allows you to use an image to create ECSs. You can also 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. Volume Backup Service (VBS) provides data backup and restoration. ● Cloud Eye monitors the status of ECSs in real time and generates alarms for issues identified to ensure service stability. ● 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.
