Clear and well organized information PPT.

I would suggest to add 'Challenges' and 'Benefits' (to this solution) headings.

don't use white color in text. Please use another color

i didn't get the differential idea ..
i thinks it's like raid mode in HDD
you need to give a good and clear example.

in the scenario you provided
in case of FW failure what will happen?

Vsphere is to manage the VM.
but what if there is a user in the U2000 client location and want to make some changes to the server?

Disk Arrays is Pata Disk or SSD or HDD?

It is suggested to add the process step involved in case of failure of primary site and switch over to secondary

Only manual switchover is supported? No automatic switchover?