On Mon, Mar 12, 2012 at 01:34:08PM +0100, Caspar Smit wrote:
> Hi all,
>
> I don't know exactly which mailinglists to use for this one so I hope
> i used the right ones.
>
> I did some performance testing on a new system and found out some
> things I couldn't explain or didn't expect.
> At the end are some questions I hope to get answered to explain the
> tings i'm seeing in the test.
>
> First of all a description of my setup.
>
> The server is a 36 bay 3,5" supermicro chassis filled with 36x 2TB
> SATA 7200 RPM disks.
> [../..]
Please check alignement of each level of stockage .
Because this disk present to controller a block size of 512 bytes , but internal
use a 4k block size .
You must check that alignement is correct for :
disk partionnemnt
md device
pv lvm
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