There are not many options left at the moment. The available CIM providers for 6.7 are very few and not one of independent RAID big players are left. We stayed at the moment with 6.5U1 which is the last version able to monitor the disks of the hosts with LSI controllers. Without disk monitoring you cannot operate a productive vSphere host in any way! I don’t understand why nobody is taken care of this!
The only option left might be to use Areca controllers because they have an independent ethernet interface to setup and monitor the RAID and they have at least a controller driver for 6.7...