On Tue, May 23, 2023 at 2:27 PM <arc@b4restore.com> wrote:
title should have said "actual size is +10TB" not 1TB.


What kind of posix compliant fs? What are its capabilities and limits?
Because for example max size of a single file is 16Tb on ext4... and after extension your VM disk file size would go near or after this limit
https://access.redhat.com/solutions/1532

Just to be sure you are not hitting a side effect caused by fs instead...
HIH,
Gianluca