Hello and thank you to everyone who responded! I just got permission to take our production clone environment on our staging server and test with it before migrating production. It's pretty much a DB clone and so I will create the raid groups for this as if it were going to be production. I will get the dba(s) to run statpack on that env on the cx-700 before I migrate it to the cx4-120 and I will run analyzer. I wll migrate using veritas volume manager mirrors and just disable those on the cx-700, however, I keep them on the cx-700 in case the performance is really bad on the cx4-120. You guys are awesome and I appreciate all the responses!