Speaker: David A. Patterson, Professor, Computer Science Division, EECS Department, University of California, Berkeley Title: Terabytes >> Teraflops (Or why work on processors when I/O is where the action is?) Abstract: Amdahl's Law tells us with faster processors we need faster and larger I/O. Unfortunately disks are getting smaller rather than faster. This talk describes the results of the RAID project (Redundant Arrays of Inexpensive Disks), which offers much greater performance, capacity, and reliablity from I/O systems. I will also talk about a new project getting underway which looks at utilizing small helical scan tapes, such as digital-audio tapes or video tapes, to offer terabytes of storage for the price of a fileserver. It promises terabytes of economical and low latency storage, which could revolutionze libraries. My thesis is that a factor of 1000 increase in storage capacity available on most Ethernets will have a much greater impact than a factor of 1000 increase in processing speed for a gaggle of scientists. -------- This talk was given as a keynote address at the ACM SIGMETRICS Conference in Santa Clara, CA on May 13, 1993.