pbs-storage-space

I'm using a local disk with xfs file system as S3 storage, and I configured on it a sync to push to a remote S3 server. But it appears to store all the data, and not only using it as cache. I want only to send a copy from my local disk to the remote S3. What I'm doing wrong? Thanks

Hello Dears i want to get pbs storage free space in my client but i cant. for example : can i get json response from this command? "pvesm status --storage pbs-local" or specific command to get my storage space to manage my backups. thanks