Date: Sun, 30 Mar 2003 12:11:43 -0800 (PST) From: John Wilson <jmw_ymail@yahoo.com> To: freebsd-questions@freebsd.org Subject: Re: Backport of ServerWorks ATA to 4-Stable? Message-ID: <20030330201143.94590.qmail@web41807.mail.yahoo.com> In-Reply-To: <9B364FFC-62E7-11D7-99F8-000A959CEE6A@pursued-with.net>
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Hi, Kevin. I, too, have the Dell PowerEdge 600SC. Here is my IDE configuration: - 120GB Western Digital on primary master. - Plextor CD-RW on secondary master. - Lite-On DVD-Rom on secondary slave. I've been running the 4-Stable series of FBSD for quite some time now and just relegated the lack of support of the ServerWorks Southbridge to "should be here soon." Just for grins, I installed 5.0 and cvsup'd -Current. While running 5.0, I was able to throw the primary HD into UDMA100 and noticed a fair amount of increased "visual" performance. The same went for the CD-RW and DVD-Rom, under UDMA33. I burned a number of full CD's and made a number of full dumps of various DVD's to the HD without issue. Also, with the CD-RW and DVD-Rom, while running under 4.x, there is quite a hit on the interrupt activity as reported by `top` while copying large amounts of data. On 5.0-Current, there was virtually none. This is about as scientific I've gotten with this thus far. :p In regard to your machine not being able to recognize slave devices, I don't really know. I've both the CD-RW and DVD-Rom on the secondary controller without a hitch, and one HD on the primary master. > What were your atacontrol settings, and how did you > differentiate the > results (dmesg, sysctl)? If I remember correctly, I used the following under 5.0: atacontrol mode 0 UDMA100 UDMA100 atacontrol mode 1 UDMA33 UDMA33 Attempting to place the secondary controller into DMA mode under 4.x, the machine would lock up shortly after. One other thing, the dmesg for 4.x states the following: pcib0: <ServerWorks host to PCI bridge(unknown chipset)> on motherboard Where as under 5.0, the dmesg correctly picked up and displayed actual support for the CSB6 Southbridge. I don't have a dmesg handy for this. - John __________________________________________________ Do you Yahoo!? Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop! http://platinum.yahoo.com
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