On 30.11.2011 03:03, Adam Stylinski wrote:
On Tue, Nov 29, 2011 at 08:38:47PM +0200, Alexander Motin wrote:
On 27.11.2011 01:41, Adam Stylinski wrote:
I just ran freebsd-update to get up to 9.0-RC2 and discovered that ataraid does
not work. I realize I'm an edge case and my scenario is not ideal (I use an
ITE controller and performance is actually impressively slow), but I cannot
boot 9.0 from my stripe, even after manually loading ataraid from the loader
prompt (after running an unload command). I mention it mostly because other
people using the fakeraid setup by their motherboards for whatever reason
(perhaps to share a partition table with windows on the same mirror or stripe)
may have a similar problem. It seems like the ar0 device disappeared for me
completely (even though it finds ada0 and ada1). I'm using the following
device:
atapci0@pci0:2:11:0: class=0x010400 card=0x00000000 chip=0x82121283 rev=0x13
hdr=0x00
vendor = 'Integrated Technology Express (ITE) Inc'
device = 'ATA 133 IDE RAID Controller (IT8212F)'
class = mass storage
subclass = RAID
rl0@pci0:2:13:0: class=0x020000 card=0x80ea104d chip=0x813910ec rev=0x10
hdr=0x00
At first I figured because it may be loading AHCI (as per the device naming
schemes ada0 and ada1). I haven't looked too much into it (these devices are
actually PATA not SATA, so AHCI doesn't even exist for these), but maybe
there's an ATA/AHCI driver that's built into the default kernelthat is
interfering with ataraid.ko? Maybe this interferes with my stupidly slow and
unpopular configuration.
Thanks for any help, I'll also have a gander at the new DEFAULTS for the
generic kernel in the 9.0 source tree.
FreeBSD 9.x uses new CAM-bases ATA subsystem. ataraid driver depends on
old ATA infrastructure and does not work with new. Instead, new GEOM
RAID class was implemented. Unluckily, as soon as ITE produced only PATA
controllers, there is no support for their metadata format in geom_raid
module now. So, at the moment, the only option to access that RAID
volume is to build custom kernel with old ATA and use ataraid.
Respective kernel options listed in /usr/src/UPDATING item from 20110424.
Hmm, I may just as well dump the UFS and restore it to a totally geom based
solution. If anything it will likely help rather than hurt my performance.
Sure. You can't boot from GEOM STRIPE (you may want MIRROR or CONCAT),
but if your motherboard has at least one SATA port, single modern hard
drive may give you even higher speeds then stripe of old PATA drives on
PCI controller.
--
Alexander Motin
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