Backup too fast/Clear Backup Cache ?

[adoII]

Hi,
today i removed my former proxmox-backup-server (vm) and changed the clients to make their host-backups with proxmox-backup-client to a newly installed proxmox backup server (hardware). The Backup of the 50GB Filesystem of the client finishes in 2 Minutes. I am absolutely sure this is physically not possible to backup 50 GB to an empty datastore within 2 Minutes.

I think there might be some cache on the client host system where i run proxmpox-backup-client from ? I removed /root/.cache/proxmox-backup/ but this was not enough.

How can i make sure that the host backup to a new pbs/datastore contains all data ?

 

[Stefan_R]

PBS uses intra-file deduplication and compression even when targeting an empty datastore (i.e. data that is included multiple times in your VM's image is still only sent once; especially unused blocks make a huge difference here). How much data is your VM actually using ('du -h' in your VM).

Could you post the output of the task log from your backup? Then I could maybe tell you more.

As for seeing if everything's there - do a restore and check for yourself.