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 specifications of the physical server that corresponds to the dedicated host. These 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 that belong to the g6, c6, r6, and ic6 instance families on a general purpose type g6 dedicated host. For more information, see Instance family.
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
Overprovisioned types
| Dedicated host type | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPUs | Memory (GiB) | Inbound or outbound bandwidth (Gbit/s)4 | Inbound or outbound packet forwarding rate (10,000 packets per second)4 |
|---|---|---|---|---|---|---|---|---|
| Compute overprovisioned type c6s | Custom | 2 | Intel ® Xeon ® 8269CY (Cascade Lake) | 52 | 520 2 | 180 | 25 | 600 |
| General overprovisioned type g6s | Custom | 2 | Intel ® Xeon ® 8269CY (Cascade Lake) | 52 | 520 2 | 372 | 25 | 600 |
| Memory overprovisioned type r6s | Custom | 2 | Intel ® Xeon ® 8269CY (Cascade Lake) | 52 | 520 2 | 750 | 25 | 600 |
| CPU overprovisioned type v5 | v5 | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 336 2 | 672 | 25 | 550 |
Enhanced types
| Dedicated host type | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPUs | 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 1 | 1024 | 64 | 2400 |
| Security enhanced & general purpose type g7t |
|
2 | Intel ® Xeon ® Platinum 8369B (Ice Lake) | 64 | 128 1 | 512 | 64 | 2400 |
| Security enhanced & compute optimized type c7t |
|
2 | Intel ® Xeon ® Platinum 8369B (Ice Lake) | 64 | 128 1 | 256 | 64 | 2400 |
| Security enhanced & compute optimized type g6t | g6t | 2 | Intel ® Xeon ® Platinum 8269 (Cascade Lake) | 52 | 104 1 | 384 | 32 | 2400 |
| Security enhanced & compute optimized type c6t | c6t | 2 | Intel ® Xeon ® Platinum 8269 (Cascade Lake) | 52 | 104 1 | 192 | 32 | 2400 |
| Storage enhanced type g5se | g5se | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 70 1 | 336 | 25 | 550 |
| Network enhanced type g5ne | g5ne | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 72 1 | 288 | 25 | 2400 |
General purpose types
| Dedicated host type | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPUs | 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 1 | 384 | 32 | 2400 |
| General purpose type g7 |
|
2 | Intel ® Xeon ® Platinum 8369B (Ice Lake) | 64 | 128 1 | 1024 | 64 | 2400 |
| General purpose type g6 |
|
2 | IIntel ®Xeon ® Platinum 8269CY (Cascade Lake) | 52 | 104 1 | 384 | 25 | 600 |
| General purpose type g5 | g5 | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 84 1 | 336 | 25 | 550 |
Memory optimized types
| Dedicated host type | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPUs | 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 1 | 768 | 32 | 2400 |
| Memory optimized type r7 |
|
2 | Intel ® Xeon ® Platinum 8369B (Ice Lake) | 64 | 128 1 | 512 | 64 | 2400 |
| Memory optimized type r6 |
|
2 | Intel ® Xeon ® 8269CY (Cascade Lake) | 52 | 104 1 | 768 | 25 | 600 |
| Memory optimized type r5 | r5 | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 86 1 | 688 | 25 | 550 |
Compute optimized types
| Dedicated host type | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPUs | 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 1 | 192 | 32 | 2400 |
| Compute optimized type c7 |
|
2 | Intel ® Xeon ® Platinum 8369B (Ice Lake) | 64 | 128 1 | 256 | 64 | 2400 |
| Compute optimized type c6 |
|
2 | Intel ® Xeon ® 8269CY (Cascade Lake) | 52 | 104 1 | 192 | 25 | 600 |
| Compute optimized type c5 | c5 | 2 | Intel ® Xeon ® Platinum 8163 (Skylake) | 48 | 86 1 | 172 | 25 | 550 |
Local SSD type
| Dedicated host type | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPUs | 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 1 | 640 | 17880 | 25 | 550 |
1. Number of vCPUs for non-overprovisioned type = Number of CPU cores × 2 - Number of vCPUs that are reserved for the dedicated host
2. Number of vCPUs for overprovisioned type = (Number of CPU cores × 2 - Number of vCPUs that are reserved for the dedicated host) × 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 instances 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 Instance family.
Retired types
The following table lists the types of dedicated hosts that are retired.
| Dedicated host type | Supported ECS instance family | Number of CPU sockets | Physical CPU model | Number of CPU cores | Number of vCPUs | Memory (GiB) | Inbound or outbound bandwidth (Gbit/s) | Inbound or outbound packet forwarding rate (10,000 packets per second) |
|---|---|---|---|---|---|---|---|---|
| Compute optimized & network enhanced type sn1ne | sn1ne | 2 | Intel Xeon E5-2682 v4 (Broadwell) | 32 | 56 1 | 112 | 10 | 450 |
| General purpose & network enhanced type sn2ne | sn2ne | 2 | Intel Xeon E5-2682 v4 (Broadwell) | 32 | 56 1 | 224 | 10 | 450 |
| Memory optimized & network enhanced type sn1ne | se1ne | 2 | Intel Xeon E5-2682 v4 (Broadwell) | 32 | 56 1 | 480 | 10 | 450 |