proxmox disk problem

I would also check if the disk might be full and read-only: lvs and df -h

And yes, for smart: smartctl -t long /dev/sda and then check some time later with smartctl -a /dev/sda.
Maybe you also want to run some fsck.
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I tried fsck but no results
for smartctl do i have to start with cd ?
I don't have much experience
but i am a good student
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@Dunuin hit the nail on the head. the good news is that your disk isnt faulty- you just need to clean up your root partition.

You're gonna ask how to do that next- this link might point you in the right direction:

there are likely other posts here on the forum as well, worth searching.
Your root filesystem is full, so you need to delete stuff. The linked article explains how to find big files/folders.
Good point to start would be the "/var/lib/vz", "/var/log", "/var/tmp" folders and their subfolders.


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