Netdata - great tool for reporting system status

Not sure if this has been mentioned before but I came across this through Pete Scargill’s blog the other day and it’s quite amazing if you want to see what your system is doing.

Simply search on netdata and then use the instructions to install it (a couple of curl command lines).

One great thing it proved to me was that after moving my system to a USB HDD I am absolutely certain that the SD card is no longer being used. You have to scroll down a bit on the dashboard but there’s no file i/o activity on the card - a lovely flat line. :smile:


One quick and easy way to monitor disk activity on a RPi: sudo cat /proc/diskstats

sudo cat /proc/diskstats|grep mmc will show only the SD card. i.e. no ramdisks, etc.

Thanks Bill,

Great bit of advice. Not speaking Linux however I wouldn’t have had a clue how to work that out (and it doesn’t have pretty dials and graphs :smiley: )


Not a problem Simon. That’s why I posted it. Happy to help.
One nice thing about it is it works “out of the box,” i.e no need to install anything.