ECS Types

ECS Flavor Naming Rules

AB.C.D

For example, s2.medium.4,

Figure 1 ECS flavor naming rules

The format is defined as follows:

• AB indicates the ECS type and type ID.
  • A specifies the ECS type. For example, s indicates a general-purpose ECS, c a computing ECS, and m a memory-optimized ECS.

    Kunpeng flavor names are started with letter k. For example, kc indicates Kunpeng general computing-plus.

  • B specifies the type ID. For example, the 1 in s1 indicates a general first-generation ECS, and the 2 in s2 indicates a general second-generation ECS. Generally, a larger number indicates a newer-generation ECS, which is more cost-effective. For example, compared with s1 and s2, s6 is a next-generation general computing ECS.
• C specifies the flavor size (the number of vCPUs), such as small, medium, large, xlarge, 2xlarge, 4xlarge, and 8xlarge.
• D specifies the ratio of memory to vCPUs expressed in a digit. For example, value 4 indicates that the ratio of memory to vCPUs is 4.

  Table 1 Mapping between flavor and the number of vCPUs

  Flavor Size	vCPUs
  small	1
  medium	1
  large	2
  xlarge	4
  Nxlarge	N x 4. A larger value of N indicates more vCPUs.

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