smartmontools error proxmox 4.4

In Proxmox 4.4 on a clean Debian 8.7 Installation we got following error every time, when we were writing a lot of small files to the hard drive (e.g when installing a package): (part of the syslog) Apr 11 04:08:34 v8d-16-177-14-1-alt kernel: [ 273.868015] Result: hostbyte=DID_OK...