Choosing the SCSI controller for storage
In vSphere 6.x, there are four types of SCSI controllers for a VM. They are:
- BusLogic Parallel
- LSI Logic Parallel
- LSI Logic SAS
- VMware Paravirtual
In order to successfully boot a VM, the guest OS must support the type of SCSI HBA you choose for your VM hardware.
BusLogic Parallel is there to support your old Guest OS; an example is Microsoft Windows 2000 Server.
LSI Logic Parallel is there to support most guest operating systems. There is not much difference in I/O performance between Bus Logic and LSI Logic; however, there is a slight difference in the way the hardware represents itself inside the guest. VMware recommends picking up LSI Logic for your Linux.
LSI Logic SAS has been built to support even newer Guest Operating Systems with advanced feature support, for example, clustering support in Windows 2008 and newer. As it is a specially built controller, it boosts the I/O performance slightly than your legacy controller. You need to use VM hardware version...
