Logical Cylinder Size of the Disks - is it possible to change it?

[MaxPhoenix]

Dear all,

i think i'm wasting a lot of space due to cylinder size of my disks.
Here the fdisk partition table:

[~]# fdisk /dev/xvda

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
         switch off the mode (command 'c') and change display units to
         sectors (command 'u').

Command (m for help): p

Disk /dev/xvda: 428.4 GB, 428422987776 bytes
255 heads, 63 sectors/track, 52086 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00050b5c

    Device Boot      Start         End      Blocks   Id  System
/dev/xvda1   *           1          64      512000   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/xvda2              64       52086   417867771   8e  Linux LVM

It seems that my logical size cylinder are of:
Units = cylinders of 16065 * 512 = 8225280 bytes

Is it right or i'm in wrong?

Thanks,
Max

[MaxPhoenix]

Ok,

i found some good answer after google a lot.
There is no much about Block Size (or Cluster Size on FAT system).

My system is running with a Block Size of 4Kb which means a lot of space wasted (especially on a web/mail server that handle toons of small files).

I would like to resize my Block Size to 512b.
Is it possible?
Any suggestion?

Thanks,
Max