Help Center/ Elastic Cloud Server/ Service Overview/ ECS Types and Specifications/ x86 ECS Specifications/ Memory-optimized ECSs
Updated on 2026-05-14 GMT+08:00
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Memory-optimized ECSs

Overview

Memory-optimized ECSs have a large memory size and provide high memory performance. They are designed for memory-intensive applications that process a large amount of data, such as precision marketing, e-commerce, and IoV big data analysis.

For details about the OSs supported by this type of ECSs, see OSs Supported by Different Types of ECSs.

Available now: M7n, M6, and M6s

Table 1 Memory-optimized ECS features

Series

Compute

Disk Type

Network

M7n
  • vCPU to memory ratio: 1:8
  • Number of vCPUs: 2 to 96
  • 3rd Generation Intel® Xeon® Scalable Processor
  • Basic/Turbo frequency: 2.6 GHz/3.4 GHz
  • High I/O
  • General Purpose SSD
  • Ultra-high I/O
  • Extreme SSD
  • General Purpose SSD V2
  • Support for IPv6
  • Ultra-high PPS throughput
  • An ECS with higher specifications has better network performance.
  • Maximum PPS: 8,500,000
  • Maximum intranet bandwidth: 40 Gbit/s
  • Maximum number of network connections: 8,000,000

M6s
  • vCPU to memory ratio: 1:8
  • Number of vCPUs: 2 to 64
  • 2nd Generation Intel® Xeon® Scalable Processor
  • Basic/Turbo frequency: 2.6 GHz/3.5 GHz
  • High I/O
  • General Purpose SSD
  • Ultra-high I/O
  • Extreme SSD
  • General Purpose SSD V2
  • Ultra-high PPS throughput
  • An ECS with higher specifications has better network performance.
  • Maximum PPS: 8,500,000
  • Maximum intranet bandwidth: 34 Gbit/s

M6
  • vCPU to memory ratio: 1:8
  • Number of vCPUs: 2 to 64
  • 2nd Generation Intel® Xeon® Scalable Processor
  • Basic/Turbo frequency: 3.0 GHz/3.4 GHz
  • High I/O
  • General Purpose SSD
  • Ultra-high I/O
  • Extreme SSD
  • General Purpose SSD V2
  • Ultra-high PPS throughput
  • An ECS with higher specifications has better network performance.
  • Maximum PPS: 10,000,000
  • Maximum intranet bandwidth: 40 Gbit/s
  • Maximum number of network connections: 10,000,000

Memory-optimized M7n

M7n ECSs use the third-generation Intel® Xeon® Scalable processors to provide enhanced performance, security, and stability. An M7n ECS can have up to 96 vCPUs and 3,200 MHz memory frequency. It provides a secure and trusted cloud environment and is suitable for memory-intensive compute applications.

Scenarios

  • MPP data warehouses
  • MapReduce and Hadoop distributed computing
  • Distributed file systems
  • Network file system, log, or data processing applications

Specifications

Table 2 M7n ECS specifications

Flavor

vCPUs

Memory

(GiB)

Max./Assured Network Bandwidth

(Gbit/s)

Max. Network PPS

(10,000)

Network Connections

(10,000)

Max. NIC Queues

Max. NICs

Assured EVS Disk Bandwidth

(Gbit/s)

Assured EVS Disk IOPS (10,000)

Max. EVS Disks

Virtualization

m7n.large.8

2

16

4/0.8

40

50

2

2

1.5

1

60

KVM

m7n.xlarge.8

4

32

8/1.6

80

50

2

3

2

2

60

KVM

m7n.2xlarge.8

8

64

15/3

150

100

4

4

3

2.5

60

KVM

m7n.3xlarge.8

12

96

17/5

200

150

4

6

4

3

60

KVM

m7n.4xlarge.8

16

128

20/6

280

150

8

8

5

4

60

KVM

m7n.6xlarge.8

24

192

25/9

400

200

8

8

6

6

60

KVM

m7n.8xlarge.8

32

256

30/12

550

300

16

8

8

7.5

60

KVM

m7n.12xlarge.8

48

384

35/18

750

400

16

8

12

11.25

60

KVM

m7n.16xlarge.8

64

512

36/24

800

500

28

8

16

16

60

KVM

m7n.24xlarge.8

96

768

40/36

850

800

32

8

24

22.5

60

KVM

Memory-optimized M6s

Overview

M6s ECSs use the second-generation Intel® Xeon® Scalable processors with technologies optimized to offer powerful and stable compute performance. Using 25GE high-speed intelligent NICs, M6s ECSs provide a maximum memory size of 512 GiB based on DDR4 for memory-intensive applications with high requirements on network bandwidth and packets per second (PPS).

Scenarios

  • MPP data warehouses
  • MapReduce and Hadoop distributed computing
  • Distributed file systems
  • Network file system, log, or data processing applications

Specifications

Table 3 M6s ECS specifications

Flavor

vCPUs

Memory

(GiB)

Max./Assured Network Bandwidth

(Gbit/s)

Max. Network PPS

(10,000)

Network Connections

(10,000)

Max. NIC Queues

Max. NICs

Virtualization

m6s.large.8

2

16

3/1

30

50

2

2

KVM

m6s.xlarge.8

4

32

6/2

60

50

2

3

KVM

m6s.2xlarge.8

8

64

12/4

120

100

4

4

KVM

m6s.3xlarge.8

12

96

14/5.5

160

150

4

6

KVM

m6s.4xlarge.8

16

128

16/7.5

220

150

8

8

KVM

m6s.6xlarge.8

24

192

20/11

320

200

8

8

KVM

m6s.8xlarge.8

32

256

25/15

450

300

16

8

KVM

m6s.16xlarge.8

64

512

34/30

850

500

32

8

KVM

Memory-optimized M6

Overview

M6 ECSs use the second-generation Intel® Xeon® Scalable processors with technologies optimized to offer powerful and stable compute performance. Using 25GE high-speed intelligent NICs, M6 ECSs provide a maximum memory size of 512 GiB based on DDR4 for memory-intensive applications with high requirements on network bandwidth and PPS.

Scenarios

  • MPP data warehouses
  • MapReduce and Hadoop distributed computing
  • Distributed file systems
  • Network file system, log, or data processing applications

Specifications

Table 4 M6 ECS specifications

Flavor

vCPUs

Memory

(GiB)

Max./Assured Network Bandwidth

(Gbit/s)

Max. Network PPS

(10,000)

Network Connections

(10,000)

Max. NIC Queues

Max. NICs

Assured EVS Disk Bandwidth

(Gbit/s)

Assured EVS Disk IOPS (10,000)

Max. EVS Disks

Virtualization

m6.large.8

2

16

4/1.2

40

50

2

2

1

1

60

KVM

m6.xlarge.8

4

32

8/2.4

80

50

2

3

1.5

2

60

KVM

m6.2xlarge.8

8

64

15/4.5

150

100

4

4

2

2.5

60

KVM

m6.3xlarge.8

12

96

17/7

200

150

4

6

2.5

3

60

KVM

m6.4xlarge.8

16

128

20/9

280

150

8

8

3.5

4

60

KVM

m6.6xlarge.8

24

192

25/14

400

200

8

8

4

5

60

KVM

m6.8xlarge.8

32

256

30/18

550

300

16

8

7

6

60

KVM

m6.16xlarge.8

64

512

40/36

1,000

500

32

8

20

15

60

KVM
Parent topic: x86 ECS Specifications