I made a simple example script using the VMware PowerCLI that can be used to do the post installation configuration of a VMware ESX 4 server. This script does the following things:
- Connect to VMware ESX server
- Set the SC memory to 800MB
- Creates vSwitch2 and add vmnic2 and vmnic3
- Add several PortGroups and VLANs to vSwitch2
- Remove default PortGroup VM Network
- Creates a VMkernel VMotion port with IP address, subnetmask and VLAN
- Add vmnic0 and vmnic1 to vSwitch0, set for the VMotion port vmnic1 active and vmnic0 standby and for the Service Console port vmnic0 active and vmnic1 standby
- Configure NTP servers and open the firewall
- Sets advanced settings Disk.UseDeviceReset to 0 and Disk.UseLUNReset  to 1
- Sets he Qlogic HBA queue depth and the Disk.SchedNumReqOutstandig to 64
- Enable VMhost Startup and stop.