The VMFS drives for the VMs need to be in 2TB chunks, so you should be able to have 2 2TB disks and a 500 Meg.
For maximums see:
Teach the user how to install vSphere Update Manager
Console to Windows system: Install vSphere Update Manager: Configure vSphere Update Manager plug-in in vSphere Client: Verify vSphere Update Manager settings in vSphere Client:
Teach the user how to configure vSphere clusters to support the VMware FT feature
Open vSphere Web Client: Verify vSphere HA is enabled: Verify netowrking for vMotion and FT Logging is in place or create it: Turn On FT for a virtual machine: Verify …