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Power loss and removing power
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netPI does not have a physical reset button. The official method to shutdown the device is clicking "shutdown" within "Control Panel" management tile under the tab "System". The shutdown will take about 10 seconds and is finished when netPI's heartbeat LED "ACT" goes on for a second first and finally remains off forever. Only in this state it is allowed to remove netPI from its power source. This ensures there are no more write accesses to the SD card media that could else easily damage the file system when interrupted during an active write.

On the other hand, a power loss or an intended/unintended remove from power source cannot be controlled and can happen at any time still. netPI's industrial grade SD card supports a mechanism called Data Clone System (DCS) to prevent data corruption during active writes. DCS holds the data to be written in a second clone buffer always. On every power cycle the card checks the last written target block's data against the buffer. If different it re-writes it and solves the problem. This mechanism vastly reduce the risk of a damaged file system.
You never fail until you stop trying.“, Albert Einstein (1879 - 1955)

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