What are the components involved in connecting an iSCSI storage solution with a Unix or Windows host? How is the storage presented to the hosts? Is it in NFS form or a LUN?
You'll need a network interface controller (typically a card or on the motherboard) and an iSCSI driver. Windows provides an iSCSI driver. For your UNIX server, you can typically get one from your storage vendor. iSCSI provides block I/O to LUNs just like Fibre Channel, except it uses Ethernet and TCP/IP and session layer software in the program stack to handle the I/O. It does not use any form of NFS.
Dig Deeper on SAN technology and arrays
Compare SAN and NAS, and find out what to consider when using each storage system format. Object storage and the cloud are also affecting the storage...
Logical unit numbers are a logical abstraction between a physical disk device and applications. Learn more about LUN use cases and LUN security ...
What is the one hidden gotcha that you'd advise users about if they were shopping for an all-flash storage array?