From owner-freebsd-hardware Wed Aug 16 09:54:04 1995 Return-Path: hardware-owner Received: (from majordom@localhost) by freefall.FreeBSD.org (8.6.11/8.6.6) id JAA11954 for hardware-outgoing; Wed, 16 Aug 1995 09:54:04 -0700 Received: from hp.com (hp.com [15.255.152.4]) by freefall.FreeBSD.org (8.6.11/8.6.6) with ESMTP id JAA11946 for ; Wed, 16 Aug 1995 09:54:02 -0700 Received: from srmail.sr.hp.com by hp.com with ESMTP (1.37.109.16/15.5+ECS 3.3) id AA138612019; Wed, 16 Aug 1995 09:53:40 -0700 Received: from hpnmhjw.sr.hp.com by srmail.sr.hp.com with ESMTP (1.37.109.16/15.5+ECS 3.3) id AA077432018; Wed, 16 Aug 1995 09:53:39 -0700 Received: from mina.sr.hp.com by hpnmhjw.sr.hp.com with SMTP (1.37.109.16/15.5+ECS 3.3) id AA289062017; Wed, 16 Aug 1995 09:53:37 -0700 Message-Id: <199508161653.AA289062017@hpnmhjw.sr.hp.com> To: "Rodney W. Grimes" Cc: freebsd-hardware@freebsd.org Subject: Re: Upgrade to my machine In-Reply-To: Your message of "Tue, 15 Aug 1995 23:09:19 PDT." <199508160609.XAA18606@gndrsh.aac.dev.com> Date: Wed, 16 Aug 1995 09:53:36 -0700 From: Darryl Okahata Sender: hardware-owner@freebsd.org Precedence: bulk > > A potentially good deal right now is the Quantum Lightning 730S > > (~699MB formatted, 4500RPM, 11ms avg. seek). The internal version is > > The ``Lightning'' series of drives are specifically aimed at the dollar > sensitive PC market, have a slow 11ms access time, a slow 4500rpm spindle > speed, and are totally missing the ability to do spindle sync operations. True. I guess I didn't make it clear in my message, but I posted my message for those people who are more concerned about price than performance. Quantum's WWW page says that the 730S has an 11ms average *SEEK* time. I've always thought that the access time was greater than the seek time (the seek time doesn't include spindle latency); if so, the 730S might be closer to a 17-18ms average access time drive (11ms + 1/2 the platter rotational time). Definitely not a fast performer. > The DEC/Quantum DSP3000 series of drives (which the 3053L is a member) > are specifically aimed at the high end high performance workstation market > (this is the series of drives DEC used in Alpha's). They have fast 9.5mS > access times, fast 5400RPM spindle speeds, and have the spindle sync > function. Out of curiousity, does anyone know the approximate street price of, say, the 3053L (and 3107L and 3210)? Where's a good/reliable place to get one (good customer service is more important than price)? I've been thinking about getting yet another drive, and I'm currently looking at a 2GB Micropolis drive. > The 2MB/sec you are seeing is the limitation of your aha1542CF controller, > the lightning series of drives should do closer to 3MB/sec on a proper > controller. I thought that the 1542CF might be the limiting factor, but I wasn't sure. Thanks for the verification. -- Darryl Okahata Internet: darrylo@sr.hp.com DISCLAIMER: this message is the author's personal opinion and does not constitute the support, opinion or policy of Hewlett-Packard or of the little green men that have been following him all day.