Page History

...

Continue 'zooming' until you can determine the date and time range of the Spikes. In the above case one spike occurred on 19/01/2016 and the other on 26/01/2016 

Using the Epoch & Unix Timestamp Conversion Tool found at http://www.epochconverter.com/ convert the date/times into their UTC equivalent as Cacti stored its date and time in UTC format.

In this case the UTC ranges are 1453161601 - 1453247999 and  1453766401 - 1453852799. We can also see that the data values on the graph are in the range of 3x10e12 (3.0Tbits) and 3.5x10e12 (3.5Tbits). The RRD Files stores the information in Bytes so we have to divide by 8 to get the magnitude of bytes. (The are 8 bits in a byte). In this case we are looking for data values in the RRD file around 3.75x10e11 and 4.375x10e11. With respect to the outbound traffic the data values on the graph are 7x10e7 (70Gbits) and 1.5x10e11 (150Gbits), so we should look for data in the order of 8.75x10e9 and 1.875x10e10

Log into prod-cacti01-fra-de.geant.net.    Username will be of the format dante.<surname> and the password will be the same as in Crowd and used forLog into prod-cacti01-fra-de.geant.net  issues.geant.net.

Change to the /tmp directory and export the data to an XML file format.

...

Make the necessary changes in the text editor, then save your changes. (You may find it easier to WinSCP this file to your local machine for editing in a different text editor if you are not famiiar with UNIX text editors such as vi).

Create a backup of the file you wish to change. Please note we are using mv and not cp because we will be unable to restore a rrd file if it exists already on the file system.

...