If you are expecting more performance from the Type 10 because it has two ports, it won't.  A single member isn't going to completely utilize a 10GbE port. 
Guys, My company just bought PS4110 and PS6110 SANs. They have controller modules types 14 and 17 respectively, two controllers per SAN. These controllers have 10GbE SFP+ and 10GbaseT ports. Either SFP or 10GbaseT can be used at any given time.  If we replace these controllers for type 10 which has dual SFP ports, is it going to result in performance dergradation?  Type 14 and 17 have 4GB cache as opposed to 2GB in type10.  Besides what about drive compatibility? Does type 10 support NL-SAS drives? THX.
Difference between controller modules