bought a computer with three IBM Deskstar 75GXP 75GB drives (one for
backups) and a Microstar K7T266 Pro motherboard. The mobo has two
extra IDE channels with Promise "Lite" IDE Raid. After fooling around
for a while I decided that I'd use Linux software Raid instead...
Now, when I install RedHat 7.1 and use "Disk Druid" to partition the
disks I find that the head/sector/cylinder settings have been altered
by the Promise Raid. The original configuration was; 16/63/148945 but
is now; 255/63/9345. The size of the disks haven't changed much
though. When I try to change back to the original values using Fdisk I
find that the largest value for cylinders is 131071 or something. So I
must increase the number of heads to keep the full size of the drive.
The question is: What impact does different settings of
head/sector/cylinder have on performance and so on?
Maybe you know where I can read about it?