OverTime Solo

User Guide

Over View:
OverTime is an application that combines the power and convenience of an NT system service SNMP data collector and a simplitic user interface with the graphical trending database facilities of Tobi Oetiker's RRDTool.

OverTime takes a user selected device and
1) Decides what version of SNMP the device supports (V2c or V1)
2) Decides what statistical information can be collected from the device to depict utilisation levels
3) Gathers these details directly from the device.
4) Configures the system service to collect the information from the device.
5) Configures the RRDTool databases to store the collected statistics.
6) Updates an HTML page so that the device's statistics can be viewed.

When the user selects the device on the HTML page via a browser, OverTime
1) Generates the appropriate graphic images for the statistics gathered for this device.
2) Generates an HTML page for the web server to display. (The same display can also be generated from the command line so that it may be relocated to a different server for later display.)

OverTime Solo stops collecting from your devices just as easily. No more configuring batch files or perl scripts for your everyday udpates. OverTime takes the administration burden away.

RRDTool databases are fixed size, not growing due to their Round Robin technology. As new information is added to the database it is placed into a fixed size table. This table is then consolidated into another table covering a longer period, but with less granularity. This table in turn is consolidated into a third and finally into a fourth table. The oldest information in each table is replaced by the newest. The tables typically cover from 30 hours with a 5-minute spacing to over a year on a daily spacing.