Enterprise-grade abstraction layer technology iSCSI (Internet Small Computer Systems Interconnect) offers performance and interchangeability advantages for storage solutions of all sizes. Originally developed for big data customers, the well seasoned iSCSI standard is appearing more and more in devices intended for consumer and small business users.
“Many technologies originally intended for the enterprise end up trickling down into the consumer market at some point. Some of these technologies (ethernet or virtualization, for instance) are more practical than others; but if businesses find a use for a specific piece of technology, then chances are good that consumers can benefit from it as well. Such is the case with iSCSI.
iSCSI stands for Internet Small Computer System Interface. SCSI (sans i) has long served to connect a variety of peripherals to computer systems, but most commonly it appears in storage devices, such as hard drives or tape-backup drives. iSCSI builds upon the base technology by allowing users to connect to a remote storage volume over a network, as if said storage volume were a locally attached disk. Simply put, iSCSI transmits SCSI commands over IP (Internet Protocol) networks. iSCSI is like a virtual SATA (or SCSI) cable, in that it uses a network connection to link a system and a storage volume.” – Marco Chiappetta / PC World