What if I don't see all of my hardware components?
If you do not see all your hardware components on the Verify hardware dialog box, it could mean that a drive shelf is not connected correctly, or that an incompatible shelf is installed in the storage array.
What if I don't see all of my hosts? If you do not see your connected hosts, then automatic detection has failed, the hosts are improperly connected, or no hosts are currently connected.
What is a workload?
For some applications in your network, such as SQL Server or Exchange, you can define a workload that optimizes storage for that application.