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_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. > > 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_at_cons.org> http://www.cons.org/cracauer/ FreeBSD - where you want to go, today. http://www.freebsd.org/Received on Tue Nov 29 2005 - 16:03:14 UTC
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