Date: Fri, 9 Aug 1996 08:24:47 -0400 (EDT) From: Frank Seltzer <frankd@yoda.fdt.net> To: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com> Cc: scott@statsci.com, freebsd-hardware@freebsd.org Subject: Re: IDE or SCSI if only one drive Message-ID: <Pine.BSI.3.95.960809082022.224E-100000@Kryten.nina.com> In-Reply-To: <199608090303.UAA07949@GndRsh.aac.dev.com>
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On Thu, 8 Aug 1996, Rodney W. Grimes wrote: > > On Thu, 8 Aug 1996, Rodney W. Grimes wrote: > > > > > I have qualified the MC4421 for use in production AAC systems, it works > > > just fine with 2.1.5 and the aha2940, as well as the NCR53C810. > > > > Do you get the message: > > > > ahc0:A:2 refuses syncronous negotiation. Using asynchronous transfers > > > > during boot? > > No. The drive properly negotiates a 10Mhz sync rate. Note there are > 2 part numbers associated with this drive model, chech it out on > http://www.micropolis.com. I am using the 8.8mS version of the drive, > perhaps you have the 9.8mS version?? TZ0030-02-5 is the part number of my drive. From Micropolis' Web site: 8.8 ms average seek time for TZ0030-02-5 > -- > Rod Grimes rgrimes@gndrsh.aac.dev.com > Accurate Automation Company Reliable computers for FreeBSD > Frank -- Only in America can a homeless veteran sleep in a cardboard box while a draft dodger sleeps in the White House. <unknown>
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