It should be saving a maximum of 60.
Build a default Dashboard project and disable (or add a control to disable if you want) the “Save DB Images” in Dashboard Main.vi
As mentioned, it should only keep the last sixty, and they are usually tens of kB each. There is a single subVI inside the vision loop that does the logging. Delete or disable it.
There is another logging feature that is in the DS rather than the DB. The DS logs the battery, packet loss, cpu usage and a few other values every 20ms. The log files are stored in the Users/public/Documents/FRC/Log Files. The files tend to stay pretty small, but there is no automatic limiter to how many files are kept. Over the last six weeks, I’ve accumulated less than 200MB. It is possible to turn off the logging for a session, but unlike most of the DS settings, the setting doesn’t stick, and defaults to on each time the DS is restarted. This was primarily for troubleshooting at events, but should be useful for general usage. Please keep an eye on it, remove the files as needed, and if necessary, a newer version can limit or have a disable switch added.