I found RS25DB080 Technical Product specification pdf file.
but no found TPS document.
(http://www.intel.com/support/motherboards/server/rs25db080/)
I find the article for the following reasons.
1. How many maximum Number of Disk Support
2. How many maximum supported number of VD
3. How many Disk supports a maximum number per VD
4. How may maximum capacity (TB)