Our internal storage is a 4Gb eMMC chip. At the moment only the size of a snap itself is limited to 250 Mb but not the storage used of it. Please beware of the limited write cycle lifetime of this chip.
You can have a look at the values mentioned by you for CPU and RAM utilisation and also the total storage (https://192.168.1.2/storage/storage). We recommened to keep at least 200Mb of free disc space for normal operation:
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