Path: utzoo!mnetor!uunet!husc6!m2c!ulowell!cg-atla!duane
From: duane@cg-atla.UUCP (Andrew Duane X5993)
Newsgroups: comp.periphs
Subject: Re: New Sun SMD Drives
Message-ID: <1305@cg-atla.UUCP>
Date: 21 Jan 88 13:56:37 GMT
References: <2467@emory.uucp>
Organization: Compugraphic Corp., Wilmington, Mass
Lines: 44
Summary: Model Numbers 'n' stuff

In article <2467@emory.uucp>, km@emory.uucp (Ken Mandelberg) writes:
> Sun just announced a 892 Meg 9 inch SMD drive. Does anyone
> know the manufacturer and model number of the drive?
> -- 
> Ken Mandelberg      |  {decvax,sun!sunatl,gatech}!emory!km  UUCP
> Emory University    |  km@emory                             BITNET
> Dept of Math and CS |  km@emory.ARPA                        ARPA,CSNET
> Atlanta, GA 30322   |  Phone: (404) 727-7963


The drive model numbers are:
	NEC D2363      and
	Hitachi DK815-10

They are 9" SMD drives that are (overall) about the size of an
elongated shoebox (260mm x 216mm x 687mm) and mounts into a 19"
rack. The general specs are:

		HITACHI		NEC
Cylinders:	1735+2		964+2
Heads:		15		27
Sectors/track:	67		67
Total Capacity:	871838Kb	871938Kb
Xfer Speed:	2458Kb/s	2458Kb/s
Avg. Latency:	8.3 ms		8.3 ms

We have had one of each of these drives here for about 2 months
now, and they are running flawlessly. The performance in "real
use" on a Sun-3/160 seems to be better than the Eagles they
replaced, but stricter benchmarking does not bear this out. We
are currently investigating why they are so fast in normal use,
but so slow (<400Kb/s) in raw-device testing. When I get more
information on this, I will post the results.

BTW, I do not know if Sun has "officially" released these
drives yet: we have them as beta-test units.

Andrew L. Duane (JOT-7)  w:(617)-658-5600 X5993  h:(617)-475-9188
Compugraphic Corp.			 decvax!cg-atla!duane
200 Ballardvale St.		       ulowell/
Wilmington, Mass. 01887		   cbosgd!ima/
Mail Stop 200II-3-5S		     ism780c/

Only my cat shares my opinions, and she doesn't know how to type.