Dedicated Host:View and export dedicated host information

View dedicated host information

On the Host Details tab, you can view the information of a dedicated host, including the ID, name, billing method, machine ID, and the number of physical CPU cores.

1. Log on to the ECS console.

2. In the left-side navigation pane, choose Instances & Images > > Dedicated Hosts.

3. In the top navigation bar, select the region and resource group to which the resource belongs.

4. On the Dedicated Hosts page, click the Host tab.

5. Find the dedicated host that you want to view and click Details in the Actions column.

6. On the page that appears, view the information of the dedicated host.

   • To view the ECS instances running on the dedicated host, click the Instances tab.

   • To view the properties of the dedicated host, click the Host Details tab.

     The properties of a dedicated host include whether automatic deployment and failover are enabled, vCPU usage, memory usage, and the number of sockets, as shown in the following figure.

     Note

     Before you create an ECS instance on a dedicated host, we recommend that you check the available computing resources (vCPUs and memory) to determine whether the ECS instance can be created. For more information, see Why did an ECS instance fail to be created on a dedicated host even though the host has sufficient available resources?

     

Export dedicated host information

You can export the information of all dedicated hosts, such as the host type, vCPU usage, and memory usage, in a region for backup or generating a report.

1. Log on to the ECS console.

2. In the left-side navigation pane, choose Instances & Images > > Dedicated Hosts.

3. In the top navigation bar, select the region and resource group to which the resource belongs.

4. On the Host tab, click in the upper right corner.

   The exported data is saved in a CSV file, for example, ecs_dedicatedHost_list_cn-hangzhou_2020-07-29.csv.

FAQ

Why did an ECS instance fail to be created on a dedicated host even though the host has sufficient available resources?

Typically, each dedicated host has two CPUs, labeled as Socket 0 and Socket 1. To maximize the performance of an ECS instance on a dedicated host, the ECS instance is created on a single socket.

• If one socket has available computing resources for creating the ECS instance, creation succeeds.

• If not, creation fails even if the combined available resources of both sockets are sufficient.

The following figure shows an example.

The following table lists the dedicated host types with socket information available and the number of sockets each type supports.

Dedicated host type	Count of sockets
Security-enhanced Memory-optimized r7t	2
Security-enhanced General-purpose g7t	2
Security-enhanced Compute-optimized c7t	2
Security-enhanced Compute-optimized g6t	2
Security-enhanced Compute-optimized c6t	2
General-purpose Performance-enhanced g6e	2
General-purpose g7	2
General-purpose g6	2
Memory-optimized Performance-enhanced r6e	2
Memory-optimized r7	2
Memory-optimized r6	2
Compute-optimized Performance-enhanced c6e	2
Compute-optimized c7	2
Compute-optimized c6	2