Linux Hint published a guide about configuring iSCSI Storage Server on Ubuntu 18.04 LTS.
Configure iSCSI Storage Server on Ubuntu 18.04 LTS
iSCSI storage server is used to share block devices such as HDD/SSD partitions, or LVM partitions, or block files on the network. iSCSI clients can use these shares over the network just as any ordinary HDD or SSD mounted to it. The iSCSI client can format these disks, mount them and store files and directories as usual. In this article, I am going to show you how to configure iSCSI storage server on Ubuntu 18.04 LTS.
Configure iSCSI Storage Server on Ubuntu 18.04 LTS – Linux Hint