So I took the plunge and just ordered a SAMSUNG 840 EVO 1Tb instead of a new RAID setup for the NAS after one of my velociraptor's started making a weird noise. The thing is that I just found this page http://techreport.com/review/25559/t...200tb-update/2 and it has scared me quite a bit. Now thinking how to avoid such a situation will reduction in bandwidth from 6Gbps to 3Gbps help in anyway?

Any other way to increase the drives life don't care for a speed reduction as long as its below 20%.