Date: Mon, 13 Oct 2003 15:29:58 +0200 From: Andre Albsmeier <andre.albsmeier@siemens.com> To: Matthias Andree <ma@dt.e-technik.uni-dortmund.de> Cc: freebsd-stable@freebsd.org Subject: Re: help needed debugging SCSI bus problem Message-ID: <20031013132958.GA24300@curry.mchp.siemens.de> In-Reply-To: <m3u16e1vbu.fsf@merlin.emma.line.org> References: <20031010103339.GA1093@grummit.biaix.org> <m3u16e1vbu.fsf@merlin.emma.line.org>
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On Sun, 12-Oct-2003 at 14:42:13 +0200, Matthias Andree wrote: > Joan Picanyol <lists-freebsd-stable@biaix.org> writes: > > > ahc0: <Adaptec 2940 Ultra2 SCSI adapter> port 0x1000-0x10ff mem > > cd0: <YAMAHA CRW2100S 1.0G> Removable CD-ROM SCSI-2 device > > Nothing more needs to be said. > > I have bad experience with both Adaptec SCSI adaptors (1542CF, 2842VL > and 2940UW Pro) and with YAMAHA CD-writers (CD-R 200T, CRW 4416S). I have used the 2940UW with a CDR100 (!), a CDR400, a CD4260, a CD6416 and a CRW2100 without any problems for years. Somtimes these drives were attached to a 29160. This also worked perfectly all the times. > > I've never had issues with AMD-based Tekram DC-390. > > I've had minor issues with "wide drive on narrow SYM53C875 > configuration" (see NetBSD PR kern/6849 for the full round-up -- and > some FreeBSD versions, same problem) that seem to be solved in recent > -STABLE versions. > > I do look after two Linux machines with a solid 2940UW setup (the > adaptors are from 1998, one is driving a Fujitsu U320 10,025/min drive) > though, so not all are bad. > > My Adaptec 2940UW Pro would lock up every other week. (I wonder if it > would lock with Windows and who'd take the blame, but I'm digressing.) > > My Yamaha 200T would go faulty early, it can no longer write disks, but > is fine reading. > > The Yamaha 4260S and 4416S had an awful firmware, Yamaha has never been > able to deliver a robust firmware, there's always something that could > lock the driver in a state that might block the whole bus. Don't mount > these into "servers". I wonder if the 2100S fares much better. Never had this problem with my 4260S or the 2100S. Can't talk about the 4416S... But: Starting with the CRW2200S, Yamaha started to ship IDE drives with some funky external SCSI-IDE converter attached to them. This is the biggest bunch of sh*t I have ever seen. They do not lock up the bus here but as soon as you do other things on the bus while burning a CD it is quite likely that you get a write error. This applies to the CRW-F1 as well. We have replaced the CRW-F1 with a <PLEXTOR CD-R PX-W4012S 1.03> and everything is fine again. Apart from that, I would use Yamaha writers again if they had a real SCSI interface. -Andre > > I've now replaced the adaptor by a used Tekram DC-390F (15 EUR) and a > new Plextor PX-W4824TA (hum, 119 EUR last winter). > > There are Plextor SCSI CD writers available (IIRC the fastest is the > PX-W4012TS) if you want one, but they're around twice as expensive as > their flagship ATAPI CD writer. > > I'm sure there are other good alternatives for either component (SCSI HA > and CD writer), but I can only talk about those I know first-hand. > > -- > Matthias Andree > > Encrypt your mail: my GnuPG key ID is 0x052E7D95 > _______________________________________________ > freebsd-scsi@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-scsi > To unsubscribe, send any mail to "freebsd-scsi-unsubscribe@freebsd.org" -- Amateurs like Linux, but professionals prefer FreeBSD.
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