Date: Sat, 6 Jul 1996 18:17:51 -0400 (EDT) From: Chuck Robey <chuckr@Glue.umd.edu> To: Troy <tdl@widomaker.com> Cc: freebsd-questions@freebsd.org Subject: Re: SCSI controller question Message-ID: <Pine.OSF.3.91.960706181307.22657B-100000@packet.eng.umd.edu> In-Reply-To: <m0ucdtr-0000fHC@widomaker.com>
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On Sat, 6 Jul 1996, Troy wrote: > Hi, > > I am considering purchasing a SCSI controller, the Tyan S1365 Yorktown. > It is a 53C825 controller (as mentioned in the FAQ) but I am concerned > when they tell us that it is a Fast/Wide SCSI-III controller, > specifically: > > SCSI Bus > > 16-bit > Wide > Single-Ended Aynchronous Transfers (up to 10 MB/sec) > Single-Ended Synchronous Transfers (up to 20 MB/sec) > > SCSI Connectors > > Internal 50-pin Vertical Low Density Connector > Internal 68-pin Right Angle High Density Connector > External 50-pin High Density Shielded Connector with Screw Jacks > > My question is can this be used easyly with FreeBSD and a Teac 6x SCSI > CDROM? (i.e. will the fact that it is 'Fast' or 'Wide' or 'SCSI-III' be a > problem or a plus? ) and to which port will I connect it? Will a driver > be a problem? I use it, but I don't have any wide drives right now, so I use the internal 50 pin connector. I don't run a cdrom on that machine yet (I have it on the other one), and the only trouble I've come upon yet is that it doesn't seem to handle itself correctly, unless you you build your kernels with the "FAILSAFE" option. Something to do with tagged commands, but I honestly don't know enough about scsi software to comment further. I have two SCSI-3 drives connected to it, and one SCSI-2 drive, and it recognizes each correctly, giving a 10 M speed to the SCSI-3 drives, and 5 to the SCSI-2. At some time in the future, I might try putting my scsi cdrom on it for test, but not right now. ----------------------------+----------------------------------------------- Chuck Robey | Interests include any kind of voice or data chuckr@eng.umd.edu | communications topic, C programming, and Unix. 9120 Edmonston Ct #302 | Greenbelt, MD 20770 | I run Journey2 and n3lxx, both FreeBSD (301) 220-2114 | version 2.2 current -- and great FUN! ----------------------------+-----------------------------------------------
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