Host Monitoring¶
AOM monitors the resource usage and health status of hosts, common system devices such as disks and file systems of hosts, and service processes or instances running on hosts.
Note
The ICAgent reports resource information every ten minutes. The resource status changes are described as follows:
If the ICAgent on a host does not report resource information for three consecutive times, the system determines that the resource has been deleted. Therefore, the host status is displayed as Deleted within 30 minutes after the host is stopped or the ICAgent is uninstalled.
When the ICAgent on a host reports resource information for one time, the system determines that the resource is restored. The host status is displayed as Normal ten minutes after the host is started or the ICAgent is reinstalled.
Precautions¶
A maximum of five tags can be added to a host, and each tag must be unique.
The same tag can be added to different hosts.
The host status can be Normal, Abnormal, Warning, Silent, or Deleted. The running status of a host is displayed as Abnormal when the host is faulty due to network failures, and power off or shut down of the host, or when the host generates a threshold alarm. For other statuses, see What Can I Do If Resources Are Not Running Properly?.
Procedure¶
In the navigation pane, choose Monitoring > Host Monitoring.
Click
in the upper right corner and select whether to show hosts.Perform the following operations as required:
Adding an alias
If a host name is too complex to identify, you can add an alias, which makes it easy to identify a host as required.
Click Add alias in the Operations column of the target host. The added alias can be modified but cannot be deleted.
Adding a tag
Tags are identifiers of hosts. You can manage hosts using tags. After a tag is added, you can quickly identify and select a host.
In the host list, locate the row that contains the target host, choose More > Add tags in the Operation column. Then, enter a tag, click
, and click OK. The Tags column in the host list is hidden by default. You can click 
in the upper right corner and select or deselect Tags to show or hide them.
Set filter criteria to search for the desired host.
Note
Hosts cannot be searched by alias.
Click the host name to enter the Host Details page. In the instance list, monitor the resource usage and health status of the instances running on the host. Click the View Monitor Graphs tab to monitor all the metrics of the host.
Creating a view template
AOM provides the default view template (Host Template) that you can modify. You can also click the plus sign (+) next to View Template to add you own template.
Adding a metric graph
You can click
to add a line graph or 
to add a digit graph to the view template. You can also delete, move, and copy metric graphs in the view template according to Dashboard.Adding a view template to a dashboard
On the host details page, choose More > Add To Dashboard in the upper right corner to add the view template to a dashboard for monitoring.
Monitor common system devices such as GPUs and NICs of the host.
Click the Instance List tab to view the basic information such as the instance status and type. Click an instance to view its metrics on the details page.
Click the GPUs tab to view the basic information about the GPUs of the host. Click a GPU to monitor its metrics on the View Monitor Graphs page.
Click the NIC tab to view the basic information about the NICs of the host. Click a NIC to monitor its metrics on the View Monitor Graphs page.
Click the Disks tab to view the basic information about the disks of the host. Click a disk to monitor its metrics on the View Monitor Graphs page.
Click the File System tab to view the basic information about the file system of the host. Click a disk file partition to monitor its metrics on the View Monitor Graphs page.
Click the Alarm Analysis tab to view the alarm details.