Information Systems:Site24x7 On-premises Poller

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Overview

The conventional use of Site24x7 is to monitor internet-reachable services (e.g. websites, email service etc.), but its on-premises poller feature allows for monitoring of on-prem hardware. This setup can be advantageous over (or at least complement) an internal monitoring system like Zabbix because it removes some internal network dependencies (e.g. SMTP server has to be up and reachable on the LAN to get alerts). The poller software is available for Linux and Windows and is currently installed on WDS (runs as a service). It is configurable from within Site24x7 (including upgrades).

Given that there are license limitations (number of monitors, network interfaces, and performance counters), and for performance reasons, internal systems monitoring with this on-prem poller will be kept to a mininum (a handful of devices at most). Currently, only Iptor Integrator and the server room UPS are the only two resources monitored with the poller.

Notes

  • Spiceworks also runs on WDS and is also an SNMP trap listener. Apparently 2 trap listeners can coexist.
  • The agent is built with Java and writes to a PostgreSQL, so it can be pretty resource-intensive. This was seen after installation (100% CPU usage due to the DB and JVM). WDS is running several services and is probably best split into 2.
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