This article is from the storage FAQ part2, by Rodney D. Van Meter with numerous contributions by others.
Chaired by Martin Freeman, Philips Research, this is an effort to standardize attaching disk drives directly to a system bus, making the disk's buffers readable as regular memory to the CPU. Sort of the opposite of network-attached storage, this couples the storage device design more closely to the hardware and OS of the host system. See http://sunrise.scu.edu/P1285Home.html for more info. (rdv, 1995/12/22)