Hey Fabiano,
I don't think SANscreen will be able to help you find misaligned virtual machines, as we are pulling data from the vSphere API, and I don't believe they have any metric there that would help find misaligned vms.
What SANscreen can do for you today is help you quickly identify which block based VMs have the most IO throughput, and also identify which VMs sit on heavily utilized flexvols or luns, assuming you own Application Insight: Array Performance and the VMs are sitting on a storage array supported by AI:AP
That said, we are looking at pulling more metrics from vSphere 4.1 for future versions of SANscreen.
