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Foglight Evolve 6.3.0 - User Guide

Selecting a set of hosts to monitor

The Hosts dashboard is useful for monitoring environments with a large number of hosts, since you can choose to show only a subset of these hosts or display all hosts.

In many cases, you need to focus on a subset of these hosts. There are different ways to do this in the Hosts dashboard:

If you need to see data for all hosts in your environment, you can:

Select All Hosts from the Filter By Activity area and leave the default setting All Hosts in the menu underneath this area.

Identifying the types of hosts you are monitoring

The icons in the Type column allow you to see at a glance what kind of hosts you are monitoring: physical hosts are identified by the icon , VMware images by the icon , and ESX servers by the icon . Each icon displays the state embedded on top. For example, a physical host in a normal state has the following icon .

Monitoring the state of hosts

Now that you have chosen the group of hosts you want to monitor, refer to the icons in the first column in the table to see the state of these hosts at a glance. Each state indicator shows the host’s aggregate alarm state (excluding the state of agents on that host).

Investigate a host’s alarms to get more details about the problems contributing to its non-normal state. In the row for the host, click the icon that represents warning, critical, or fatal alarms to display an alarm list filtered to show only the warning, critical, or fatal alarms for that host. See Viewing, Acknowledging, and Clearing Alarms for information about working with alarms.

Viewing the host performance

The CPU, Memory, Disk, and Network columns allow you to obtain a concise overview of your hosts’ performance in these metric categories. The values in these columns—and the popups and drilldowns available from them—change with the dashboard's time range.

These columns display recent and current values for each metric category. Recent values are displayed as a sparkline in the Utilization column.

TIP: By default, a sparkline is shown only in the CPU Utilization column. To display sparklines for other metric categories, click the Show columns icon () at the top of the table and select the Utilization checkbox under Memory, Disk, or Network.


CPU Details (example shown below): use it to identify the top CPU consumers on the host, see the top processes’ utilization trends, and view charts for CPU utilization process load.


Memory Details: use it to investigate overall memory utilization on the host and the amount of memory the top processes are consuming. The Top Memory Consumers table lists both resident and virtual sizes for the top processes.


Disk Details: use it to identify the top disk I/O consumers on the host, see the utilization trends of the top CPU processes, and view charts for disk size and bytes read and written.


Network Details: use it to investigate the aggregate network utilization of the host and view the activity of your network connections.

You can view the dependencies for a selected host you are monitoring in the Host Monitor dashboard by clicking Host Dependencies on the General tab of the action panel. If you have the Cartridge for Dependency Mapping installed, this feature allows you to view the elements in the host’s dependency chain.  For more information, see the Managing Dependency Mapping User Guide.

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