A private cloud administrator realizes a specific VM has grown, and there is a low amount of free space on the disk/datastore. The disk/datastore sizes are standardized, so the cloud administrator can

Performing compression on the VM volume might free up some space but can negatively impact performance due to increased CPU usage for compression/decompression operations and might not be a long-term solution.

Requesting the VM owner to delete unnecessary files is a temporary solution and does not address the underlying issue of the VM's growth or the standardized disk sizes.

Storage live migration, such as Storage vMotion in VMware environments, allows moving a VM's disk files from one datastore to another without interrupting the running VM. This capability addresses the problem of low disk space by relocating the VM to a datastore with adequate capacity, while adhering to the standardized disk sizes on the existing datastore.

V2P (Virtual to Physical) migration would move the VM out of the private cloud entirely, which is a drastic and usually undesired step to solve a disk space problem within the existing cloud.