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ECS Specifications Used by MRS

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

The ECS specifications available on MRS console vary by cluster version.

• General computing (S2)
• General computing (S3)
• General computing-plus (C3)
• General computing-plus (C4)
• Disk-intensive (D2)

ECS Flavor Naming Rules

AB.C.D

Example: m3.8xlarge.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.

Specifications

Table 1 S2 ECS specifications

Type	vCPUs	Memory (GB)	Flavor	Virtualization Type
S2	16	32	s2.4xlarge.2.linux.mrs	XEN

Table 2 S3 ECS specifications

Type	vCPUs	Memory (GB)	Flavor	Virtualization Type
S3	16	32	s3.4xlarge.2.linux.mrs	XEN

Table 3 General computing-plus (C3) ECS specifications

Type	vCPUs	Memory (GB)	Flavor	Virtualization Type
C3	16	32	c3.4xlarge.2.linux.mrs	KVM

Table 4 C4 ECS specifications

Type	vCPUs	Memory (GB)	Flavor	Virtualization Type
C4	4	16	c4.xlarge.4.linux.mrs	KVM
	16	64	c4.4xlarge.4.linux.mrs	KVM
	32	64	c4.8xlarge.2.linux.mrs	KVM

Table 5 D2 ECS specifications

Type	vCPUs	Memory (GB)	Flavor	Virtualization Type	Local Disk (GB)	Hardware
D2	16	128	d2.4xlarge.8.linux.mrs	KVM	8×1675	CPU: Intel® Xeon® Gold 6151 Processor v5 Memory: 20 × 32 GB
	24	192	d2.6xlarge.8.linux.mrs	KVM	12×1675
	32	256	d2.8xlarge.8.linux.mrs	KVM	16×1675

Parent topic: Appendix