Multiple SOS stores on the same server

Hello! We've got a dedup server with 1 additional physical disk for dedup store1.

in whitepaper:

The StoreOnce library (or deduplication store), is the physical storage disk used by the StoreOnce software deduplication interface. (StoreOnce software deduplication uses HP StoreOnce Backup System technology developed by HP Labs.) The supported capacity of the physical disk is 10 TB (of deduplicated data). Typically, with a deduplication ratio of say 20:1, this is equivalent to backing up 200 TB of data. If multiple stores are used, the total supported capacity is still 10 TB.

Can i attach a second physical disk for second 10 Tb dedup store2 to the same server to work (another volume)?

Or for second store I have to make a second server?

Additionally in DP 6 max store is 10 Tb, in DP 7 it is 20 Tb. Can Dp 6 use 20 Tb store?

thanks