Generic SCSI target subsystem for Linux SCST allows creation of sophisticated storage devices. It includes generic SCSI target core with SCSI target drivers and backend handlers. There are target drivers for iSCSI, Fibre Channel, SRP, SAS, FCoE, etc.
The scsirastools package adds several Linux SCSI tools that can be used to service and maintain disk storage devices. It handles SCSI, Linux SW RAID, SAS, SATA, and USB devices via SCSI emulation. For details & rpms, see http://scsirastools.sf.net.