Help Center/ Application Operations Management/ User Guide (Ankara Region)/ User Guide/ Infrastructure Monitoring/ Host Monitoring
Updated on 2024-04-15 GMT+08:00
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Host Monitoring

Hosts include Elastic Cloud Servers (ECSs). Both IPv4 and IPv6 addresses are supported.

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.

The ICAgent reports resource information every ten minutes. The following describes the resource status changes:

  • 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 exists. The host status is displayed as Normal ten minutes after the host is started or the ICAgent is installed.

Precautions

  • 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 or host power-off or shut-down, or when a threshold alarm is reported on the host. For more information, see What Can I Do If Resources Are Not Running Properly?.

Procedure

  1. On the menu bar, choose Monitoring Center.
  2. In the navigation pane, choose Infrastructure Monitoring > Host Monitoring.

    • To view desired hosts, set filter criteria (such as the running status, host type, host name, and IP address) above the host list.
    • You can select or deselect Hide master host as required. By default, master hosts are hidden.
    • Click next to Hide master host to synchronize host information.
    • In the upper right corner of the page, set host filter criteria.
      1. Set a time range to view the hosts reported. There are two methods to set a time range:

        Method 1: Use the predefined time label, such as Last 30 minutes, Last hour, Last 6 hours, Last day, or Last week. Select one as required.

        Method 2: Specify the start time and end time (max. 15 days).

      2. Set the interval for refreshing information. Click and select a value from the drop-down list as required, such as Refresh manually, 30 seconds auto refresh, 1 minute auto refresh, or 5 minutes auto refresh.
      3. Click in the upper right corner and select or deselect Tags.

  3. 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.

      In the host list, click in the Operation column of the target host, enter an alias, and click OK. The added alias can be modified but cannot be deleted.

    • Synchronizing host data

      In the host list, locate the target host and click in the Operation column to synchronize host information.

  4. Set filter criteria to search for the desired host.

    Hosts cannot be searched by alias.

  5. Click a host name. The Host Details page is displayed.

    • On the Host Details page, view the running status and ID of the host.
    • In the upper right corner of the page, set a time range and refresh frequency.
    • Click the Instance List tab to view the basic information (such as the instance name and IP address). Click an instance to view its metrics on the details page.
    • Enter an instance name in the search box in the upper right corner and click to search.
    • Click to refresh the instance list.
    • On Monitoring View tab page, monitor key metrics of the host, such as the total number of CPU cores, used CPU cores, and CPU core usage.
    • On the Events tab page, view the event details of the host. For details, see Viewing Events.
    • On the Alarms tab page, view the alarm details of the host. For details, see Viewing Alarms.
    • On the File Systems tab page, view the basic information about the file system of the host. Click a disk file partition to monitor its metrics on the Monitoring View page.
    • On the Disk tab page, view the basic information about the disks of the host. Click a disk to monitor its metrics on the Monitoring View page.
    • On the Disk Partition tab page, view the disk partition information about the host. Click a disk partition to monitor its metrics on the Monitoring View page.
    • On the NIC tab page, view the basic information about the NICs of the host. Click a NIC to monitor its metrics on the Monitoring View page.
    • On the GPU tab page, view the basic information about the GPUs of the host. Click a GPU to monitor its metrics on the Monitoring View page.