Memory-optimized DCCs

Overview

Memory-optimized DCCs are designed for processing large-scale data sets in the memory. They use the latest Intel Xeon Skylake CPUs, network acceleration engines, and Data Plane Development Kit (DPDK) to provide higher network performance, providing a maximum of 512 GB DDR4 memory for high-memory computing applications.

Memory-optimized DCCs are classified into m3, m7, and m6 types. M3, M7, and M6 ECSs can be deployed on memory-optimized DCCs.

DCC Specifications

**Table 1** Specifications of m3 DCCs
DCC Type	Number of CPUs (Sockets)	Number of Physical Cores	Hardware Specifications	vCPUs
m3	2	18	CPU: Intel® Xeon® Skylake 6151 v5 (frequency: 3.00 GHz; Turbo frequency: 3.40 GHz) Memory: 512 GB (or 524,288 MB)	64

**Table 2** Specifications of m6 DCCs
DCC Type	Number of CPUs (Sockets)	Number of Physical Cores	Hardware Specifications	vCPUs
m6	2	22	CPU: Intel Cascade Lake 6266 (frequency: 3.00 GHz; Turbo frequency: 3.40 GHz) Memory: 608 GB (or 622,592 MB)	76

**Table 3** Specifications of m7 DCCs
DCC Type	Number of CPUs (Sockets)	Number of Physical Cores	Hardware Specifications	vCPUs
m7	2	32	CPU: Intel® Xeon® IceLake CPU (frequency: 3.0 GHz; Turbo frequency: 3.5 GHz) Memory: 1,024 GB (or 1,048,576 MB)	128

The number of vCPUs for a DCC is calculated as follows: Number of vCPUs = (Number of sockets x Number of cores x Number of single-core threads – CPU overheads) x CPU overcommitment ratio

m3 DCCs
vCPUs = (2 x 18 x 2 – 12) x 1.07 = 64
m6 DCCs
vCPUs = (2 x 22 x 2 – 12) x 1 = 76
m7 DCCs
vCPUs = (2 x 32 x 2 – 0) x 1 = 128

ECSs Allowed on DCCs

**Table 4** ECS flavors allowed on m3 DCCs
ECS Flavor	vCPUs	Memory (GiB)
m3.large.8	2	16
m3.xlarge.8	4	32
m3.2xlarge.8	8	64
m3.3xlarge.8	12	96
m3.4xlarge.8	16	128
m3.6xlarge.8	24	192
m3.8xlarge.8	32	256
m3.15xlarge.8	60	512
m3.16xlarge.8	64	512

**Table 5** ECS flavors allowed on m6 DCCs
ECS Flavor	vCPUs	Memory (GiB)
m6.large.8	2	16
m6.xlarge.8	4	32
m6.2xlarge.8	8	64
m6.3xlarge.8	12	96
m6.4xlarge.8	16	128
m6.6xlarge.8	24	192
m6.8xlarge.8	32	256
m6.16xlarge.8	64	512

**Table 6** ECS flavors allowed on m7 DCCs
ECS Flavor	vCPUs	Memory (GiB)
m7.large.8	2	16
m7.xlarge.8	4	32
m7.2xlarge.8	8	64
m7.3xlarge.8	12	96
m7.4xlarge.8	16	128
m7.6xlarge.8	24	192
m7.8xlarge.8	32	256
m7.12xlarge.8	48	384
m7.16xlarge.8	64	512
m7.24xlarge.8	96	768
m7.32xlarge.8	128	1024