Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!rochester!pt.cs.cmu.edu!o.gp.cs.cmu.edu!andrew.cmu.edu!ls1i+ From: ls1i+@andrew.cmu.edu (Leonard John Schultz) Newsgroups: comp.sys.next Subject: Re: NeXT HDs, who makes them? Message-ID: Date: 5 Feb 91 20:38:55 GMT References: <63452@brunix.UUCP> <1991Feb3.025412.9529@agate.berkeley.edu>, <1991Feb3.141109.26388@wam.umd.edu> Distribution: usa Organization: Class of '92, Carnegie Mellon, Pittsburgh, PA Lines: 18 In-Reply-To: <1991Feb3.141109.26388@wam.umd.edu> On 03-Feb-91 in Re: NeXT HDs, who makes them? user Alan J. Schunemann@wam.u writes: >>Interestingly enough, the same brochure states that the SCSI-2 connector has >>a transfer rate of 4.8MB/sec (burst rate), but does not specify a sustained >>rate, nor a rate for the internal port. >> >>last question: Is synchronous communication uniqe to SCSI-2 drives? >> Thanks alot, Peter Marinac, 39clocks@violet.berkeley.edu > >I don't believe synchronous communication is "unique" to SCSI-2 drives. The >Quantum 105 LPS internal drive runs synchronous. (that's what LPS stands for). >Most of the "big" workstation manufacturers package synchronous HDs with thier >systems because they're faster. I've been trying to figure this whole HD mess >out for a while and the above comments are just my current understanding not >the gospel. If anyone knows the real spiel please correct me! Not that it really matters, since the SCSI port in the NeXTstation is SCSI-1. Only the cable is SCSI-2