A cloud server ECS instance is equivalent to a virtual machine, including the most basic computing components such as vCPU, memory, operating system, network, and disk. You can easily customize and change the configuration of the instance. You have complete control over the virtual machine. The difference from the local server is that you only need to log in to Alibaba Cloud to use the cloud server for independent management, configuration, and other operations.
What is the Alibaba Cloud instance type family?
According to business scenarios, ECS instances can be divided into multiple specification families. In the same specification family, according to the configuration of vCPU and memory, it can be divided into multiple different specifications. Different instance specifications have different configurations such as vCPU and memory, including physical CPU model and main frequency. Certain software or applications have requirements for the configuration of instance specifications, for example, running
Windows Server mirroring requires the instance size to be no less than 512MiB of memory. Among them, a vCPU represents a thread, and multiple threads can run on a physical CPU.
According to business scenarios and usage scenarios, ECS instances can be divided into multiple instance specification families. According to the configuration of CPU and memory, an instance type family is divided into multiple instance types.
ECS instance specifications define the basic attributes of the instance: CPU and memory (including CPU model, main frequency, etc.). However, only when ECS instances cooperate with block storage, mirroring, and network types at the same time, can the specific service form of an instance be uniquely determined.
Enterprise scenarios have high requirements for business stability. According to whether it is suitable for enterprise scenarios, instance type families can be divided into enterprise-level instance type families and shared instance type families. In an enterprise-level instance, each vCPU corresponds to the hyperthreading of an Intel ® Xeon ® processor core, which has the characteristics of stable performance and exclusive resources.
What is system storage
Network Type
ECS instances distinguish network types, support classic network and private network VPC, VPC is recommended. The instance is in the same network, such as the same VPC, and can use the private network IP address to communicate through the intranet. If the instance needs to communicate with the public network, you can obtain the public network IP address to communicate with devices on the Internet.
According to the system architecture and usage scenarios, ECS instance specification families can be divided into:
| Enterprise-class x86 computing specification group | |
|---|---|
| recommend | Others are on sale (if sold out, it is recommended to use the recommended specification family) |
|
|
| Enterprise-level heterogeneous computing specification group | |
|---|---|
| recommend | Others are on sale (if sold out, it is recommended to use the recommended specification family) |
|
|
| Elastic bare metal server (Shenlong) and supercomputing cluster (SCC) instance specification group | |
|---|---|
| recommend | Others are on sale (if sold out, it is recommended to use the recommended specification family) |
|
|
| 共享型x86计算规格族群 | |
|---|---|
| 推荐 | 其他在售（如果售罄，建议使用推荐规格族） |
|
|