• Elastic Cloud Server

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  5. ECS Types and Specifications
  6. ECS Types

ECS Types

The public cloud provides the following ECS types for different application scenarios:
  • General-purpose
  • Dedicated general-purpose
  • Memory-optimized
  • Large-memory
  • Disk-intensive
  • High-performance computing
  • GPU-accelerated

ECS Flavor Naming Rules

ECS flavors are named using the format "AB.C.D".

The format is defined as follows:

  • A specifies the ECS type. For example, s indicates a general-purpose ECS, c a computing ECS, and m a memory-optimized ECS.
  • B specifies the type ID. For example, the 1 in s1 indicates a general-purpose first-generation ECS, and the 2 in s2 indicates a general-purpose second-generation ECS.
  • C specifies the flavor size, such as medium, large, or xlarge.
  • D specifies the ratio of vCPUs to memory expressed in a digit. For example, value 4 indicates that the ratio of vCPUs to memory is 4.

Specifications

ECS Type

vCPUs

Memory (GB)

Flavor

Virtualization Type

General-purpose

1

4

s1.medium

XEN

2

8

s1.large

XEN

4

16

s1.xlarge

XEN

8

32

s1.2xlarge

XEN

16

64

s1.4xlarge

XEN

32

128

s1.8xlarge

XEN

1

1

c1.medium

XEN

2

2

c1.large

XEN

4

4

c1.xlarge

XEN

8

8

c1.2xlarge

XEN

16

16

c1.4xlarge

XEN

32

32

c1.8xlarge

XEN

1

2

c2.medium

XEN

2

4

c2.large

XEN

4

8

c2.xlarge

XEN

8

16

c2.2xlarge

XEN

16

32

c2.4xlarge

XEN

32

64

c2.8xlarge

XEN

1

8

m1.medium

XEN

2

16

m1.large

XEN

4

32

m1.xlarge

XEN

8

64

m1.2xlarge

XEN

16

128

m1.4xlarge

XEN

1

1

s2.medium.1

KVM

2

2

s2.large.1

KVM

4

4

s2.xlarge.1

KVM

8

8

s2.2xlarge.1

KVM

16

16

s2.4xlarge.1

KVM

32

32

s2.8xlarge.1

KVM

1

2

s2.medium.2

KVM

2

4

s2.large.2

KVM

4

8

s2.xlarge.2

KVM

8

16

s2.2xlarge.2

KVM

16

32

s2.4xlarge.2

KVM

32

64

s2.8xlarge.2

KVM

1

4

s2.medium.4

KVM

2

8

s2.large.4

KVM

4

16

s2.xlarge.4

KVM

8

32

s2.2xlarge.4

KVM

16

64

s2.4xlarge.4

KVM

32

128

s2.8xlarge.4

KVM

1

8

s2.medium.8

KVM

2

16

s2.large.8

KVM

4

32

s2.xlarge.8

KVM

8

64

s2.2xlarge.8

KVM

16

128

s2.4xlarge.8

KVM

32

256

s2.8xlarge.8

KVM

Dedicated general-purpose

2

4

c3.large.2

KVM

4

8

c3.xlarge.2

KVM

8

16

c3.2xlarge.2

KVM

16

32

c3.4xlarge.2

KVM

32

64

c3.8xlarge.2

KVM

60

128

c3.15xlarge.2

KVM

2

8

c3.large.4

KVM

4

16

c3.xlarge.4

KVM

8

32

c3.2xlarge.4

KVM

16

64

c3.4xlarge.4

KVM

32

128

c3.8xlarge.4

KVM

60

256

c3.15xlarge.4

KVM

Memory-optimized

32

256

m2.8xlarge.8

KVM

2

16

m3.large.8

KVM

4

32

m3.xlarge.8

KVM

8

64

m3.2xlarge.8

KVM

16

128

m3.4xlarge.8

KVM

32

256

m3.8xlarge.8

KVM

60

512

m3.15xlarge.8

KVM

Large-memory

4

128

e1.xlarge

XEN

8

256

e1.2xlarge

XEN

16

470

e1.4xlarge

XEN

32

940

e1.8xlarge

XEN

8

128

e2.2xlarge

XEN

12

256

e2.3xlarge

XEN

18

445

e2.4xlarge

XEN

36

890

e2.9xlarge

XEN

GPU-accelerated

4

8

g1.xlarge

XEN

8

16

g1.2xlarge

XEN

8

64

g2.2xlarge

XEN

8

64

p1.2xlarge.8

KVM

16

128

p1.4xlarge.8

KVM

32

256

p1.8xlarge.8

KVM

8

64

p2.2xlarge.8

KVM

16

128

p2.4xlarge.8

KVM

32

256

p2.8xlarge.8

KVM

Disk-intensive

4

32

d1.xlarge

XEN

8

64

d1.2xlarge

XEN

16

128

d1.4xlarge

XEN

36

256

d1.8xlarge

XEN

4

32

d2.xlarge.8

KVM

8

64

d2.2xlarge.8

KVM

16

128

d2.4xlarge.8

KVM

24

192

d2.6xlarge.8

KVM

32

256

d2.8xlarge.8

KVM

60

540

d2.15xlarge.9

KVM

High-performance computing

2

4

h1.large

XEN

4

8

h1.xlarge

XEN

8

16

h1.2xlarge

XEN

16

32

h1.4xlarge

XEN

32

64

h1.8xlarge

XEN

2

8

h1.large.4

XEN

4

16

h1.xlarge.4

XEN

8

32

h1.2xlarge.4

XEN

16

64

h1.4xlarge.4

XEN

32

128

h1.8xlarge.4

XEN

2

16

h1.large.8

XEN

4

32

h1.xlarge.8

XEN

8

64

h1.2xlarge.8

XEN

16

128

h1.4xlarge.8

XEN

32

256

h1.8xlarge.8

XEN

16

128

h2.3xlarge.10

KVM

16

256

h2.3xlarge.20

KVM

32

256

hl1.8xlarge.8

KVM

Obtaining Specifications When Creating an ECS

Specifications for the ECS being created are located in the specifications list.