Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!usc!elroy.jpl.nasa.gov!decwrl!shelby!neon!kaufman From: kaufman@Neon.Stanford.EDU (Marc T. Kaufman) Newsgroups: comp.periphs Subject: Re: DAT vs. 8mm Message-ID: <1990Apr9.013326.11270@Neon.Stanford.EDU> Date: 9 Apr 90 01:33:26 GMT References: <28719@cup.portal.com> Organization: Computer Science Department, Stanford University Lines: 14 In article <28719@cup.portal.com> tms@cup.portal.com (Alexis TMS Tatarsky) writes: >...Also, many computer >manufacturers (HP for instance) are going with R-DAT as standard product. >My question is why??? 8mm has a higher capacity, is faster, and as far as I >know reliable (even though early Exabyte units proved extremely unreliable). Part of the problem is that Exabytes are faster. Many SCSI systems just cannot keep the Exabyte streaming at 240+ KB/sec AND read the disk at the same time. The slower DAT system (125 KB/sec I think) gives the OS more time to read and format disk data without dropping out of streaming mode. Marc Kaufman (kaufman@Neon.stanford.edu)