I was wondering, we utilise 951s to provide captive portal (w/ internet) to businesses, we have just enabled “graphing” and i have a question going forward.
Our 951s have 128MiB of storage inside them, we have graphing setup to “every 5 minutes” with “store on disk” - i was wondering what happens when this space is filled, do the mikrotiks have circular logging, will the boxes effectively “break” as it will get to the point where it is unable to write sessions etc.
I am trying to work out if we are going to need to handle this ourselves.
Graphing does not fill the disk. It creates a single file for each item being graphed at the time
you enable it, and it does not consume more space over time. The information is automatically
being pruned as time elapses (storing less and less detail as it gets older).
Since its running MRTG, the graph file is created with all null data. As data is saved to build the graph metrics, so the null values are replaced with real data. The size of the graph file on the Mikrotik remains the same size, but will have 1 for each graph set you create.