Over the last several weeks, I've delved into forgotten aspects of building an IP storage network and how to best leverage it with both NFS and iSCSI -- the two dominant IP storage protocols used in virtualization. Throughout that time, I've received a bunch of queries from readers, all united by one question: Which is better, NFS or iSCSI?
As with many hotly debated IT subjects, the choice between any two popular competing technologies is less about which is better overall and more about which is best for solving the challenge at hand. NFS and iSCSI are no different. Both have strengths and weaknesses depending on the situation. But the future of storage -- which will make geographically diverse storage clustering a reality -- may significantically factor into your choice of protocol.
File vs. block