[ovirt-users] About Local Storage dir

Hello, everyone. I want to export my vm as a ova to local path of the ovirt node. but I saw something about the local storage in the ovirt document: https://www.ovirt.org/documentation/admin-guide/chap-Storage/ It said: Preparing Local Storage ... Important: On oVirt Node, the path used for local storage must be within the /var directory; create the storage directory in the following procedure within /var I check the partation of my ovirt nodes. the /var has only 15GB space and the root dir / has 2.1 TB space. that is the default during the ovirt node installation. question: why the loca storage must be put in the /var directory? thanks. yours Adam