We thank Paul Massigilia and Bill Grace of Digital Equipment Corp for helping us run our disk tests on their UDA50/RA81. We also thank Rich Notari and Paul Ritkowski of Emulex for making their machines available to us to run our tests of the SC780/Eagles. Dan McKinster, then of Systems Industries, arranged to make their equipment available for the tests. We appreciate the time provided by Bob Gross, Joe Wolf, and Sam Leffler on their machines to refine our benchmarks. Finally we thank our sponsors, the National Science Foundation under grant MCS80-05144, and the Defense Advance Research Projects Agency (DoD) under Arpa Order No. 4031 monitored by Naval Electronic System Command under Contract No. N00039-82-C-0235.