Re: Building new Athlon AMD64 Socket 939 or 940 machine
From: Martin Cracauer (cracauer_at_cons.org)
Date: 11/29/05
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Date: Tue, 29 Nov 2005 12:02:43 -0500 To: Gavin Atkinson <gavin.atkinson@ury.york.ac.uk>
Gavin Atkinson wrote on Tue, Nov 29, 2005 at 01:37:14PM +0000:
> On Mon, 2005-11-28 at 13:05 -0500, Martin Cracauer wrote:
> > > Hmm, well that's promising. This is with:
> > > atapci1@pci0:7:0: class=0x010485 card=0x5348108e chip=0x005410de
> > > rev=0xf3 hdr=0x00
> > > vendor = 'NVIDIA Corporation'
> > > device = 'nForce4 Serial ATA Controller'
> > > class = mass storage
> > > subclass = RAID
> > >
> > > I don't know if it makes any difference, but the board has on-board
> > > NVIDIA RAID, which I'm considerably less than impressed with. I'll
> > > build one of them without the on-board RAID support and see if
> > > hot-insert works. I don't have the logs (long story, but basically the
> > > RAID bios hosed my data) but I think it failed to notice the inserted
> > > disk, and was timing out while trying to select the channel when forced
> > > with an atacontrol reinit.
> >
> > Do not use this for safety/raid1.
> >
> > I have seen several reports that the NVidia software raid wipes out
> > the intact drive on warm boot when the machine reboots with one drive
> > bad. Seems to do a random pick which drive to mirror to which other.
>
> Thanks for confirming this - that is exactly the same behaviour as I
> have witnessed. I've even managed to lose data from the disks without
> any OS involvement, purely by using the RAID BIOS. I'm amazed how bad
> this controller is.
Just to make that clear: the controller works well (well, no NCQ), it
is just the BIOS support for the pseudo-hardware RAID on top that is
-uh- questionable.
Martin
-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Martin Cracauer <cracauer@cons.org> http://www.cons.org/cracauer/ FreeBSD - where you want to go, today. http://www.freebsd.org/ _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
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