What are the differences between SCSI and iSCSI in term of features, functionality and architecture?
I am assuming you are asking about parallel or serial attached SCSI vs. iSCSI. iSCSI is the SCSI protocol mapped to TCP/IP and run over standard Ethernet technologies. This allows Ethernet networks to be deployed as SANs at a much lower TCO than Fibre Channel (FC).
The iSCSI on Ethernet (10/100/1000/10000) is a good viable external interconnect between application server initiators and storage targets. Parallel SCSI and SAS are good internal interconnects between the server and its internal storage or between the array controller and its drawers of hard disk drives (HDDs).
Dig Deeper on ISCSI SAN
Related Q&A from Marc Staimer
Flash SSDs have become more popular in general-purpose storage thanks to lower price points and increased performance, leading to expanded capacity ...continue reading
When compared with earlier Serial ATA standards, SATAe is more advanced, reduces latency, has a higher performance level and offers backwards ...continue reading
Latency in object stores that stems from a large amount of metadata means the technology is better suited to non-transactional data.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.