I have a Dell PE R710 server with 8 x 300GB hard drives. I am going to install ESXi onto the server and run several VM's. How should I configure my hard drives? I am hearing that RAID5 can really affect performance, so RAID1+0 is recommended. I am also hearing you should have a seperate array for your OS, but wouldn't that be a huge waste of space. I heard if you have all on the same array, then you are limited to 1MB block sizes with a 256GB max hard drive capacity, is that true? Are they saying each VM will be limited to 256GB, or each hard drive partition within the VM's, or that you will only have 256GB of space to allocate to all of your VM's? Please help!