After deploying a small VNX system for several months, a customer now plans to upgrade to a much larger VNX system. The system has been used to serve filesystems to both Windows and Unix clients…

After deploying a small VNX system for several months, a customer now plans to upgrade to a much larger VNX system. The system has been used to serve filesystems to both Windows and Unix clients separately and they would like to retain and migrate this data to the new platform. Which tool(s) would offer the safest and simplest process?