WD160 + Drive geometry problem

[Philippe Dorman]

Hiya,

I recently got a 160 gig hard drive, it seems to be mounted
properly, partitions and slices "seem" fine, yet I cant write more than 2k
to the disk, it's just as if there wasn't any free space left. I'm using a
Promise Ultra ATA/133 controller, which does support drives greater than 137
gigs so that shouldn't be the problem. I'm running 5.1-Current. Here's the
output to a couple commands 

First from dmesg

ad4: 19546MB <FUJITSU MPG3204AT E> [39714/16/63] at ata2-master UDMA100
ad5: 76319MB <WDC WD800BB-00CAA1> [155061/16/63] at ata2-slave UDMA100
ad6: 39205MB <Maxtor 6E040L0> [79656/16/63] at ata3-master UDMA133
ad7: 152627MB <WDC WD1600JB-00EVA0> [310101/16/63] at ata3-slave UDMA100

df

Filesystem  1K-blocks     Used     Avail Capacity  Mounted on
/dev/ad4s1a    253678   251702    -18318   108%    /
devfs               1        1         0   100%    /dev
/dev/ad4s1e    253678        2    233382     0%    /tmp
/dev/ad4s1f  18121388  2997228  13674450    18%    /usr
/dev/ad4s1d    253678    33436    199948    14%    /var
/dev/ad7s1  151368706        2 139259208     0%    /hd1
/dev/ad6s1   38879438 32184422   3584662    90%    /hd2
/dev/ad5s1   75685352 69630522         2   100%    /hd3


Then disklabel ad7s1 (starts to get interesting here - 8 partitions?)

# /dev/ad7s1:
8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
 c: 312576642       63    unused        0     0         # "raw" part, don't
edit
 d: 312576642       63    4.2BSD     2048 16384 28552
partition c: partition extends past end of unit
disklabel: partition c doesn't start at 0!
disklabel: An incorrect partition c may cause problems for standard system
utilities
partition d: partition extends past end of unit

I'm not sure if it has to do with the drive geometry, I stuck the drive in
my windows box and got the following geometry, 16709/255/63 (however it
wasn't recognizing more than 137gig). When I use the fdisk utility it tells
me that the geometry of 310101/16/63 (which is what you can find on the
western digital website in the drive specs) is incorrect, and that it is
using a more likely geometry. I try to set it back to the default, but the
changes don't seem to "stick", or change the fact that I can't use the hard
disk. Any help is appreciated!

-Phil