SCSI disk geometry on NCR810 (Multia/UDB)

[Brendan Miller <brmiller xenon kudzu gammalink com>]

All but one of my four SCSI disks connected to my Multia have geometries
with heads = 64, sectors = 32, cylinders = approx. # MB.  Except one, that
is.  This disk has H = 255, S = 63, C = 261.  I wouldn't have worried
about it, except that when I came close to filling the disk up, "bad things"
happened.  I ended up with a lot of SCSI errors, fsck puked, etc.  One
of the disks on my chain is identical to the one with the 255/63/261 
geometry, and it has 64/32/2047 geometry.  So I thought I would change
the geometry in fdisk.  fdisk doesn't want to let me do it--it always 
changes it to 67/32/1009 or something like that.

My experience has shown me that when you low-level format a disk in SCSI
bios, the geometry usually gets [re]set by the card, but I could not find
a way to format it on my Multia.

Any help?  Or am I just being anal with the geometry on that one disk?

Brendan