101's

- 1TB HDD

-5TB HDD

206"s have:  

-   single HDD as the default
-   dual 1TB SSD, configured as RAID1
-   dual 4TB SSD, configured as RAID1
-   dual 8TB SSD, configured as RAID1

*The base chassis is 1 TB HDD.*

The 8s have only SSD RAID options.
- dual 1TB SSD
- dual 4TB SSD
- dual 8TB SSD.

*We require people to tell us well in advance when they want one of the SSD options.