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.
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