If you are installing a Vtrak from Apple on Microsoft Windows you can download the drivers from Promise here:
http://www.promise.com/support/download/download_eng.asp
Having said this, you can use the Promise drivers or generic drivers if you’re using the Promise as targets and connecting to those LUNs via StorNext that are managed by Xsan. The reason for this is that StorNext will manage the LUNs. To see the LUNs, check Windows Device Manager.