Licensing Question

[tamnse]

Hi,

After searching for a stable and reliable control panel, i found out that Plesk would be a great solution for my needs.

The problem is; i don't understand the licensing procedure of Plesk.

Are the licenses lifetime license ?
Can anyone provide an example of 10 box licensing schema ? Do i have to buy 10 Plesk license ?

I am interested in building a load-balanced system. Also i want to include a storage solution for security of customer and config files. Is it supported in Plesk ?

I am thinking on building a blade server system for my load-balanced intention. Is it possible use Plesk in blade servers ?

Thanks