kubuntu 18.04: constantly writing on disk

Asked Oct 01 '20 at 13:20

Active Oct 01 '20 at 13:32

Viewed 181 times

I'm using kubuntu 18.04. When I do:

sudo smartctl -a /dev/nvme0n1

I see the SSD is super hot since this morning (70+ Celsius) --I can feel the laptop unusually hot right of the mouse pad-- and in the "Data Units Written:" row, hundreds of GB got written since this morning (I check every few hours since this morning) when all I did is using slack video conf. Is this normal? The ssd capacity usage is still the same at 30%. Is this some background task? How to find which one?

----Even when I don't do anything with the laptop there is 2.5MB/sec being written to disk (according to iotop's "Actual disk write", written by "snapd"). And again, total disk is still only 30% filled (so these writes don't fill the disk).

edited Oct 01 '20 at 13:32

asked Oct 01 '20 at 13:20

user2413

14,337

See if you can install iotop and it should show what is writing to your disk so much. – Terrance Oct 01 '20 at 13:31
a command called "snapd" – user2413 Oct 01 '20 at 13:32
Possible: https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1839237 – Terrance Oct 01 '20 at 13:33
@Terrance: yes, looks like it. Do you know how to fix? – user2413 Oct 01 '20 at 13:35
One person in the bug said that they disabled and re-enabled the snap service. Try stuff from https://askubuntu.com/questions/1045542/how-to-stop-snapd-from-auto-updating The second answer there shows how to disable. – Terrance Oct 01 '20 at 13:38

kubuntu 18.04: constantly writing on disk

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