Problems with Proxmox backups


New Member
Apr 9, 2019
Hi all,
I have a problem with the backups of my virtual machine.
My unit c: \ of the virtual machine was filled to 700GB.
I deleted the files and the C: \ drive now occupies 158GB. But when I do the backup, it still occupies 700GB. How can I do so that my backup can occupy 158GB again?
Thank you.


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This relies on Windows to trigger the TRIM on the disks, so maybe check again after some time and disc IO.


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