Date: Fri, 27 May 2005 02:26:10 -0700 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Olaf Greve" <o.greve@axis.nl>, "Roland Smith" <rsmith@xs4all.nl>, <freebsd-questions@freebsd.org> Subject: RE: DVD burners and the Adaptec 2200S RAID controller... Message-ID: <LOBBIFDAGNMAMLGJJCKNEEJFFBAA.tedm@toybox.placo.com> In-Reply-To: <4296DF0E.8010206@axis.nl>
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> -----Original Message----- > From: owner-freebsd-questions@freebsd.org > [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Olaf Greve > Sent: Friday, May 27, 2005 1:49 AM > To: Roland Smith; freebsd-questions@freebsd.org > Subject: DVD burners and the Adaptec 2200S RAID controller... > > > Hi Roland, > > First off: tnx for your reply! > > > I haven't tried burning DVDs with the ATA driver. The manual page for > > growisofs says that you should use SCSI devices on OpenBSD > and NetBSD, > > but it doesn't mention FreeBSD. > > Hmmm, one would guess FreeBSD not to be very different in that > respect. > Speed is not really a concern for me, but potential data > corruption is. > I just read something about someone having had issues with an ATA DVD > drive, due to digital line-noise on the regular low cost 40-pin ATA > cable. Using an 80-pin one apparently solved it. Makes sense. > > >>I will use an Adaptec 2200S U320 RAID controller for the > harddrives, so > >>perhaps an ATA interface would be easier to configure > indepenently of > >>another SCSI device (then again: maybe not). Any advice in > that respect? > > > > > > I don't think having CAM in the kernel will make it more difficult. > > If possible, I'll try to use the generic kernel. AFAIK that covers the > 2200S. What I'm wondering about is the following: would it be possible > to use the 2200S as a regular controller for a SCSI DVD rewriter, in > combination with it running 4 drives in RAID 10 mode? > The controller has two U320 channels and allows up to 30 devices to be > connected to it. However, I'm not certain that is assuming RAID only > set-ups or whether that also allows regular SCSI devices to be > attached > to it... > > Does anyone have any experience using such a combination? > Don't do this. Leave only hard disks on the RAID array card. Most RAID cards only want disk drives on the busses anyway. Ted
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