Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!ncar!tank!uxc!uxc.cso.uiuc.edu!urbsdc!tucker
From: tucker@urbsdc.Urbana.Gould.COM
Newsgroups: comp.arch
Subject: Re: SMD Interface standard
Message-ID: <28200200@urbsdc>
Date: 13 Sep 88 23:41:00 GMT
References: <6290@nsc.nsc.com>
Lines: 14
Nf-ID: #R:nsc.nsc.com:6290:urbsdc:28200200:000:579
Nf-From: urbsdc.Urbana.Gould.COM!tucker    Sep 13 18:41:00 1988


>Can anyone fill us in on SMD-E, 2.4 and 3.0 MBps interfaces, etc?  Are
>there new high performance disk interfaces on the horizon that we should
>be aware of?  I've heard of work being done on simultaneous reading from
>all (or some subset > 1) of the tracks of a cylinder.  What interface
>could handle that much bandwidth?

CDC is working on a high-speed disk with two active heads (see recent
article in Electronic News).  The interface is IPI-2.  In theory IPI
is 10Mbytes/second, but in the real world it is more like 7Mbytes
a second.

Tim Tucker
tucker@xenurus.Gould.COM