Building new Athlon AMD64 Socket 939 or 940 machine

[Martin Cracauer]

> Hmm, well that's promising.  This is with:
> atapci1 at 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.

gmirror will do fine for raid1, and performs adequately (not as well
as Linux software raid1, but probably better than NVidia anyway).

Martin
-- 
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Martin Cracauer <cracauer at cons.org>   http://www.cons.org/cracauer/
FreeBSD - where you want to go, today.      http://www.freebsd.org/