Date: Tue, 19 Jul 2011 20:48:54 -0700 From: Chuck Swiger <cswiger@mac.com> To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: freebsd-stable@freebsd.org, perryh@pluto.rain.com, peterjeremy@acm.org Subject: Re: Status of support for 4KB disk sectors Message-ID: <84CC369B-4E70-414C-8C57-5FE772C7134F@mac.com> In-Reply-To: <20110720031431.GA33758@icarus.home.lan> References: <CAN6yY1uaUqk2ifiNViJyMFJWf60a4DmCiVs3Z=--_TjtzseABQ@mail.gmail.com> <20110718234124.GA5626@icarus.home.lan> <CAN6yY1uaEwoEhEuoTNPqzywRaCPEvcLY-ddyFRUV00FcBDU1BA@mail.gmail.com> <E8F5CB22-21D5-4AF9-A690-1DB99D31F4CC@mac.com> <20110719211039.GA16085@server.vk2pj.dyndns.org> <02D367A5-CA74-4E8A-BE3E-F81485B287A7@mac.com> <4e26a250.iKKzhkOLoTB3sdOr%perryh@pluto.rain.com> <20110720031431.GA33758@icarus.home.lan>
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On Jul 19, 2011, at 8:14 PM, Jeremy Chadwick wrote: > On Wed, Jul 20, 2011 at 02:39:28AM -0700, perryh@pluto.rain.com wrote: >> IIRC, Plextor (and maybe some others) had a switch to select 512 or >> 2048 as the default transfer size, precisely so that they could be >> used as boot devices with systems that supported only 512. Come to think of it, I do remember that switch, yes. Do you happen to know whether this limitation was part of the Sun hardware, or of SunOS? CMU had a lot of Sun3 machines and NeXT clusters, so I ended up mixing NeXT CD-ROM and the Canon? magneto-optical drives with Sun H/W, and vice versa. SunOS wasn't the only O/S which was run on a m68k Sun box. ;-) > I don't think Plextor was around back then; they used to be called TEXEL > back in the early 90s. The only Sun SCSI CD drives I saw were external > and caddy-based, so I mentally correlate them with NEC. Back then I > wasn't looking at brands as much as I do today, though. I'm pretty sure some folks had NEC caddy drives as well. Regards, -- -Chuck
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