Several disk-files per VM

[Sansibarius]

Hello
Why and under what circumstances ProxMox creates more than one file per VM or CT, p.ex:
vm-202-disk-0
vm-202-disk-1
vm-202-disk-2

On my system, disk-1 seems to be the main disk with the largest size (p.ex. 274.88 GB) and disk-0 and disk-2 are typically only a few MB.
What are the functions and contence of these disks?

When I move the VM to a different storage, only disk-1 is moved to the new location and disks 0 and 2 remain on the old location.
This is particularly bad when I want to clean a drive.

The only way I found so far to move all files to a new location is delete the full VM and restore it from the backup to the new location.

Thanks for your thoughts.

 

[aaron]

Disk images to store UEFI and TPM state most likely. They show up as EFI Disk or TPM disk in the hardware panel of the VM.

 

[Sansibarius]

Thats correct, thanks.
So in order to move storage for the whole machine, I have to move each disk separately.