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Tony Pearson is a Master Inventor and Senior IT Specialist for the IBM System Storage product line at the
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.
technorati tags: IBM, SAN, iSCSI, NAS, Wolfgang Singer, SNIA, SNW, Dave Hitz
Comments (1)
I think there's a good argument for calling iSCSI "IP SAN" when it runs over its own dedicated network.<div> </div> I'm curious whether you also categorize NFS as a form of IP SAN, when you build a dedicated NFS network between servers and storage?<div> </div> I'm not thinking of NFS for traditional file sharing here, but NFS on isolated switches as a heavy-duty storage back-end for applications like Oracle or SAP.<div> </div> What I think is so fun about this whole space is that it is evolving so quickly that the terminology just can't keep up with people's creativity. It reminds me of the early days in networking when people got into big fights about exactly what qualified as a switch, a router, or a layer-4 switch. Somehow people got over the naming fights and got on with deploying the things in creative new ways.<div> </div> Dave