Backup failed because cat: write error: No space left on device

Hi

I’m stuck with that error. I saw many threads but with no luck
i change my temp folder in webmin–>Webmin Configuration–>Advanced Options to /home/temp/.webmin
user have Allowed disk quota set to Unlimited
The VS backup is more than 7 Go
df -h output

/dev/vda1 20G 12G 8,8G 57% /
devtmpfs 1,9G 0 1,9G 0% /dev
tmpfs 1,9G 0 1,9G 0% /dev/shm
tmpfs 1,9G 17M 1,9G 1% /run
tmpfs 1,9G 0 1,9G 0% /sys/fs/cgroup
tmpfs 386M 0 386M 0% /run/user/0
tmpfs 386M 0 386M 0% /run/user/509

Thanks for putting me on the right track

Are you sure there is enough space left in the partition? If you set Unlimited in the disk quota it will still give that error if the physical server disk/partition size is reached.