Blog Entry of 2010-Aug- 3 in PRTG 8
New Features in PRTG 8 - Part 3: Introducing "The PRTG Cluster"
Simple Failover ClusterThe most common setup is two PRTG servers running “side-by-side” in a single failover cluster. The first node is the Master Node and is responsible for the configuration, management, alerting, and reporting. If this PRTG instance should fail, e.g. due to a server crash or connectivity issues, the second node (i.e. the Failover Node) takes over the master role and continues the monitoring until the original Master Node is back online.
Multi Failover ClusterUsing the same clustering technique, the administrator can set up a web of up to 5 nodes, all working together in one fail-safe monitoring environment. If a node fails or the server running the PRTG installation must be restarted, the other nodes continue monitoring, so you can obtain seamless data reports.
Cluster FeaturesPRTG’s cluster status page always shows the current cluster status clearly. In a cluster, all nodes are connected to each other, exchanging configuration data. An update of the PRTG software can be installed on any of the nodes —it will be deployed to the other cluster nodes automatically. While every node collects monitoring data in its own database, reports on these data can be generated centrally. The distributed database has another advantage: Should a server running a PRTG node core server crash, losing all data, there is still the monitoring data from all other available nodes, even if—for whatever reason—no backup can be restored for the crashed server.
In ShortPRTG 8's cluster features in short:
- Fail-safe monitoring
- Monitoring data from every node’s perspective
- Distributed data base
- Central reporting
- Central notifications/alerting
- Secure connections between nodes