Configuring a Performance Test—From Beginning to End - Virtualizing SQL Server with VMware - page 341

Figure 11.7 Changing the virtual controller type to VMware Paravirtual.
Click Add and repeat this process until three new SCSI controllers have been added.
For the purposes of this lab, we striped the VMDKs across the three available
datastores in our datastore cluster. All three of our datastores have the same
performance characteristics and are roughly the same size. We attempted to distribute
them as much as possible to spread out the load. When looking at VMDK placement on
the disk subsystem, it is important to match the VMDK's purpose (OS and binary versus
log drive) to the underlying storage. For more information on the VMDK-to-datastore
mapping, read Chapter 6 , which goes into various configuration options available for
your configuration.
Next, we are going to add VMDKs to the virtual machine and strategically place them
on the new SCSI controllers. Click the down arrow next to New device and select New