ECS Specifications Supported by MRS Clusters

MRS uses ECSs of the following types in different application scenarios.

MRS uses the following BMS:

AB.C.D

Example: m2.8xlarge.8

In the preceding flavor:

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 a flavor size and can be any of the following options: medium, large, and xlarge.
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** General computing-plus (C) ECS specifications
Type	vCPU	Memory (GB)	Flavor	Virtualization Type
C3	32	64	c3.8xlarge.2	KVM
C3	16	64	c3.4xlarge.4	KVM
C3	32	128	c3.8xlarge.4	KVM
C3	60	256	c3ne.15xlarge.4	KVM
C3ne	32	64	c3ne.8xlarge.2	KVM
C3ne	16	64	c3ne.4xlarge.4	KVM
C3ne	32	128	c3ne.8xlarge.4	KVM
C3ne	60	256	c3ne.15xlarge.4	KVM
C6	32	64	c6.8xlarge.2	KVM
C6	64	128	c6.16xlarge.2	KVM
C6	16	64	c6.4xlarge.4	KVM
C6	32	128	c6.8xlarge.4	KVM
C6	64	256	c6.16xlarge.4	KVM
C6s	32	64	c6s.8xlarge.2	KVM
C6s	64	128	c6s.16xlarge.2	KVM

**Table 2** Memory-optimized ECS specifications
Type	vCPU	Memory (GB)	Flavor	Virtualization Type
M3	8	64	m3.2xlarge.8	KVM
M3	16	128	m3.4xlarge.8	KVM
M3	32	256	m3.8xlarge.8	KVM
M3	60	512	m3.15xlarge.8	KVM
M6	8	64	m6.2xlarge.8	KVM
M6	16	128	m6.4xlarge.8	KVM
M6	32	256	m6.8xlarge.8	KVM
M6	64	512	m6.16xlarge.8	KVM