There is a part of the infrastructure, where I have to do a sw raid on vmware esxi, because the SmartArray controller cannot be added and connection to the storage is not possible as well. So what I plan to do, is to have 3 disks in the server - 1 for booting the esxi and 2 provisioned to the VM, so I could do the sw raid within the OS installation process. So the virtual machine is going to have 2 virtual disks, each from different datastore/physical disks.
The question is, what is the performance impact in this case? (VM is nagios with 100+ checking hosts and services), or should I search for another solution ?