Of course, NAS and iSCSI technologies have been around for a while, but they are still new formany customers, which is why tutorials like this are so important.
Not everyone is clear on these technologies. For example, Dave Hitz asksis iSCSI SAN or is iSCSI NAS? I Don’t Know.
To avoid this confusion, IBM adopted clarifying technology.
- When iSCSI is intermixed with NFS, CIFS and other TCP/IP messaging traffic, it's NAS.
- When iSCSI is run on its own dedicated network, for security and performance reasons, it's an IP SAN.