Network Availability

The Network Availability page will show you the uptime of hosts, using the ping events from the heartbeat history page as data. The uptime page will show the following information:

•	How long has a host been up

•	How long has a host been down

•	How long has a host been monitored

•	Percentage of availability

You can sort the output of the uptime statistics by availability, group, computer and location. Furthermore you can filter the results by group, location and date.

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Availability

You can customize the limits that are used to show red, orange and green colors using the profile editor.

Prerequisites:

The Global Options need to be configured to write heartbeat information to a database in order for heartbeat information to be written to the database.

Since the uptime page uses the PING history as data, it is imperative that you are monitoring a host through ping in order to use the uptime page. Furthermore it is necessary that the heartbeat history of each host starts with a status change from a status other than OK to a status of OK (example from "NEWLY ADDED HOST" to "OK").

EventSentry does this automatically starting with version 2.60, as such you will need to upgrade to version 2.60 (or higher) in order to get reliable information through the uptime calculation page.