Proxmox iSCSI
Installing iSCSI Daemon
iSCSI is a widely employed technology that is used to connect to storage servers. Almost all storage vendors support iSCSI. There are also open-source iSCSI target solutions available, which is based on Debian.
To use Debian, install the Open-iSCSI (open-iscsi) package. This is a standard Debian package, however, not installed by default to save the resources.
apt-get install open-iscsi