Re: Penalty of using unsupported ServerWorks GC-SL chipset?
From: Doug White (dwhite_at_gumbysoft.com)
Date: 05/28/04
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Date: Thu, 27 May 2004 15:53:29 -0700 (PDT) To: Vasenin Alexander aka BlackSir <blacksir@number.ru>
On Thu, 27 May 2004, Vasenin Alexander aka BlackSir wrote:
> What penalty of using Tyan motherboard on unsupported ServerWorks
> chipset GC-SL? I found a message in freebsd-questions: Benjamin Thelen
> wrote that he tried using GC-SL and unable to use DMA on ATA. It's not
> my case - on MB I intrested there is a Promise 20270 RAID controller
> onboard, that supported (I asked Soren Schmidt). I apologise that there
> can be problems with USB,PCI or some other things. Damn, HP,
> Fujitsu-Siemens and some local companies using only GC-SL for low-cost
> 1U server solutions :-(
You again? :)
There are known issues with the ServerWorks ROSB4 southbridge and data
loss when run in DMA modes. I think ROSB5 forces simplex mode so you
don't get as good a benefit as you would from a full-fledged ATA
controller.
But that is why the ATA RAID controller is on the board :-) The ROSB[45]
were designed for CDROMs, not system disks (IMHO).
-- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
- Previous message: Doug White: "Re: how to interpret crash?"
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