From ArchWiki

With iSCSI you can access storage over an IP-based network.

The exported storage entity is the target and the importing entity is the initiator.

Since Linux 2.6.38 LIO is the in-kernel iSCSI target. Before that it was tgt. SCST was another candidate for kernel inclusion.[1]

The current initiator is Open-iSCSI.

It is possible to boot Arch Linux via iSCSI.

See also