Yes, all of the SCSI controllers have the same chipset (Symbios Logic 53c875).
The system works fine with the disks in the wrong order, but it will cause a major headache to figure out which disk in the chassis corresponds to which sd* device in Linux. Also, setting up the software RAID on this machine will likely prove to be difficult. Do you have any suggestions as to where I could look for more information on the PCI probing order? Mike On Wed, 2004-05-19 at 18:42 -0500, Patrick Finnegan wrote: > On Wednesday 19 May 2004 15:41, Mike Artis wrote: > > My problem is that during and after installation, Debian reports the > > drive order incorrectly. It is reporting disk #4 (the first slot on > > the first controller card) as /dev/sda instead of disk #0 as > > /dev/sda. This setup worked correctly in Solaris 9, and works fine > > if I only have 4 disks in place in the onboard SCSI controller. As > > soon as drives get added to the controller cards, they are recognized > > first. OpenBoot always reports the drive order correctly. > > Do the onboard and controller card use the same SCSI host driver? If > not, you are loading the drivers in the wrong order, you could try > building a kernel, with the onboard driver built-in and the SCSI > controller card driver as a module, to force the order that they're > initialized/detected in. > > If they use the same driver, then the PCI device probing order is > different than what Solaris and OpenBOOT use, so you're not going to > have much luck changing that around. > > Either way, I don't see why disk ordering should really matter, just use > the devices in the order you want (ie, /dev/sde as disk #0 and /dev/sda > as disk #4). > > Pat > -- > Purdue University ITAP/RCS --- http://www.itap.purdue.edu/rcs/ > The Computer Refuge --- http://computer-refuge.org
