Backup Exec 2012

Hi Guys,

I am in the process of evaluating Backup Exec 2012 and just wanted to confirm the following points. Much appreciated if someone could confirm these.

1> If I have a virtual computer with 2 vmdks (C:\ and D:\), individual vmdk cannot be restored?

2> Do I always have to select the option to delete the existing vm before restoring?

3> I do know that backing up through the vcenter is quite slower than backing up through the esx server, but I am agetting a reate of 7GB/min while backing up through the esx and just 600MB/min while backing up through the vcenter. I am backing up through the SAN. How can there be such a big difference?

4> If the esx is managed by a vcenter, restores will work only through the vcenter?

thanks

Raj