The type of a dedicated host determines the type and number of ECS instances that you can create on the dedicated host. This topic describes the types of dedicated hosts.
Overview
The type of a dedicated host refers to the physical server specifications of the dedicated host. The specifications include the CPU model, memory size, local storage space, number of CPU cores, number of CPU sockets, and number of vCPUs.
The predefined ECS instances on a dedicated host can be used in the same scenarios as the ECS instances on a shared host. Therefore, you can create ECS instances on a dedicated host whose type is compatible with the ECS instances. For example, you can create all types of ECS instances which belong to the g6, c6, r6, and ic6 instance families on a general-purpose type g6 dedicated host. For more information, see Overview of instance families.
Custom instance types allow you to customize the vCPU-to-memory ratio. For example, you can create custom types of ECS instances on a dedicated host whose type is general-purpose overprovisioned type g6s. You can also change the number of vCPUs and the memory size.
Available types
The available types include overprovisioned, enhanced, general-purpose, memory-optimized, compute-optimized, and local SSD types. The performance of different types may vary. When you purchase a dedicated host, select the type that best suits your needs.
The explanations for columns marked with ①, ②, ③, and ④ in the tables are as follows:
①: Number of vCPUs for non-overprovisioned type = Number of CPU cores × 2
②: Number of vCPUs for overprovisioned type = Number of CPU cores × 2 × CPU overprovisioning ratio
③: For more information about local SSDs, see Local disks.
④: The total packet forwarding rate or bandwidth of all the ECS instance types on a dedicated host must be less than that of the dedicated host. For information about the network performance of all the ECS instances, see Overview of instance families.
Overprovisioned types
Dedicated host type | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPU cores② | Memory (GiB) | Inbound or outbound bandwidth (Gbit/s)④ | Inbound or outbound packet forwarding rate (10,000 packets per second)④ |
General-overprovisioned type g7s | Custom | 2 | Intel ®Xeon ®Platinum 8369B (Ice Lake) | 64 | 640 | 512 | 64 | 1200 |
Memory-overprovisioned type r7s | Custom | 2 | Intel ®Xeon ®Platinum 8369B (Ice Lake) | 64 | 640 | 1024 | 64 | 1200 |
Compute-overprovisioned type c6s | Custom | 2 | Intel ®Xeon ® Platinum 8269CY (Cascade Lake) | 52 | 520 | 180 | 25 | 400 |
General-overprovisioned type g6s | Custom | 2 | Intel ®Xeon ® Platinum 8269CY (Cascade Lake) | 52 | 520 | 372 | 25 | 400 |
Memory-overprovisioned type r6s | Custom | 2 | Intel ®Xeon ® Platinum 8269CY (Cascade Lake) | 52 | 520 | 750 | 25 | 400 |
CPU-overprovisioned type v5 | v5 | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 336 | 672 | 25 | 550 |
Enhanced types
Dedicated host types | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPU cores① | Memory (GiB) | Inbound or outbound bandwidth (Gbit/s)④ | Inbound or outbound packet forwarding rate (10,000 packets per second)④ |
Security-enhanced memory-optimized type r7t |
| 2 | Intel ®Xeon ®Platinum 8369B (Ice Lake) | 64 | 128 | 1024 | 64 | 2400 |
Security-enhanced general-purpose type g7t |
| 2 | Intel ®Xeon ®Platinum 8369B (Ice Lake) | 64 | 128 | 512 | 64 | 2400 |
Security-enhanced compute-optimized type c7t |
| 2 | Intel ®Xeon ®Platinum 8369B (Ice Lake) | 64 | 128 | 256 | 64 | 2400 |
Security-enhanced compute-optimized type g6t | g6t | 2 | Intel ® Xeon ® Platinum 8269 (Cascade Lake) | 52 | 104 | 384 | 32 | 2400 |
Security-enhanced compute-optimized type c6t | c6t | 2 | Intel ® Xeon ® Platinum 8269 (Cascade Lake) | 52 | 104 | 192 | 32 | 2400 |
Storage-enhanced type g5se | g5se | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 70 | 336 | 25 | 550 |
Network-enhanced type g5ne | g5ne | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 72 | 288 | 25 | 2400 |
General-purpose types
Dedicated host types | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPU cores① | Memory (GiB) | Inbound or outbound bandwidth (Gbit/s)④ | Inbound or outbound packet forwarding rate (10,000 packets per second)④ |
General-purpose performance-enhanced type g6e |
| 2 | Intel ® Xeon ® Platinum 8269 (Cascade) | 52 | 104 | 384 | 32 | 2400 |
General-purpose type g7 |
| 2 | Intel ®Xeon ®Platinum 8369B (Ice Lake) | 64 | 128 | 1024 | 64 | 2400 |
General-purpose type g6 |
| 2 | Intel ®Xeon ® Platinum 8269CY (Cascade Lake) | 52 | 104 | 384 | 25 | 400 |
General-purpose type g5 | g5 | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 84 | 336 | 25 | 550 |
Memory-optimized types
Dedicated host types | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPU cores① | Memory (GiB) | Inbound or outbound bandwidth (Gbit/s)④ | Inbound or outbound packet forwarding rate (10,000 packets per second)④ |
Memory-optimized performance-enhanced type r6e |
| 2 | Intel ® Xeon ® Platinum 8269 (Cascade) | 52 | 104 | 768 | 32 | 2400 |
Memory-optimized type r7 |
| 2 | Intel ®Xeon ®Platinum 8369B (Ice Lake) | 64 | 128 | 512 | 64 | 2400 |
Memory-optimized type r6 |
| 2 | Intel ®Xeon ® Platinum 8269CY (Cascade Lake) | 52 | 104 | 768 | 25 | 400 |
Memory-optimized type r5 | r5 | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 86 | 688 | 25 | 550 |
Compute-optimized types
Dedicated host types | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPU cores① | Memory (GiB) | Inbound or outbound bandwidth (Gbit/s)④ | Inbound or outbound packet forwarding rate (10,000 packets per second)④ |
Compute-optimized performance-enhanced type c6e |
| 2 | Intel ® Xeon ® Platinum 8269 (Cascade) | 52 | 104 | 192 | 32 | 2400 |
Compute-optimized type c7 | c7 | 2 | Intel ®Xeon ®Platinum 8369B (Ice Lake) | 64 | 128 | 256 | 64 | 2400 |
Compute-optimized type c6 |
| 2 | Intel ®Xeon ® Platinum 8269CY (Cascade Lake) | 52 | 104 | 192 | 25 | 600 |
Compute-optimized type c5 | c5 | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 86 | 172 | 25 | 550 |
Local SSD type
Dedicated host types | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPU cores① | Memory (GiB) | Local SSD (GiB)③ | Inbound or outbound bandwidth (Gbit/s)④ | Inbound or outbound packet forwarding rate (10,000 packets per second)④ |
Local SSD type i2 | i2 | 2 | Intel® Xeon® Platinum 8163 (Skylake) | 48 | 80 | 640 | 17880 | 25 | 550 |
Retired types
Dedicated host types | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPU cores① | Memory (GiB) | Inbound or outbound bandwidth (Gbit/s)④ | Inbound or outbound packet forwarding rate (10,000 packets per second)④ |
Compute-optimized network-enhanced type sn1ne | sn1ne | 2 | Intel Xeon E5-2682 v4 (Broadwell) | 32 | 56 | 112 | 10 | 450 |
General-purpose network-enhanced type sn2ne | sn2ne | 2 | Intel Xeon E5-2682 v4 (Broadwell) | 32 | 56 | 224 | 10 | 450 |
Memory-optimized network-enhanced type se1ne | se1ne | 2 | Intel Xeon E5-2682 v4 (Broadwell) | 32 | 56 | 480 | 10 | 450 |