Powercli to get RAID level

Dear all,

.

In our environment, ESXi will be installed on the local harddisk of the server.

So, I would like to get the RAID level of the harddisk where the esxi is installed .

If above is not possible, is there a way to fetch the physical harddisk and its sizes, where the host is installed.

Eg : Either i need an answer as RAID 5 or

i require answer as Physical disk 1 - 100 GB Physical disk 2 - 100 GB , physical disk 3 - 100GB

So by fetching the local datastore size, i can get the configured RAID level.

Please help