Use VMFS3 with blocksize larger than 1MB for swap files larger than 255GB.
Virtual SCSI adapters per virtual machine
Any combination of supported SCSI virtual storage controllers. Four Paravirtual SCSI adaptersmay be used only if the virtual machine boots from a device attached to an IDE controller, or fromthe network.
Virtual SCSI targets per virtual SCSI adapter
Any combination of disk, CD‐ROM, or VMDirectPath SCSI target.
Virtual SCSI targets per virtual machine
Virtual Disks per virtual machine (PVSCSI)
Virtual disk size
2TB minus 512 bytes
IDE controllers per virtual machine
Supports two channels (primary and secondary) each with a master and slave device.
IDE devices per virtual machine
Devices can be either CD‐ROM or disk
Floppy controllers per virtual machine
Floppy devices per virtual machine
BIOS is configured for one floppy device.
Virtual NICs per virtual machine
Any combination of supported virtual NICs.
USB controllers per virtual machine
Supports USB 1.x and USB 2.x devices.
USB devices connected to a virtual machine
Parallel ports per virtual machine
USB 3.0 devices per virtual machine
xHCI USB controllers9
Guest operating systems might have smaller limits than allowed by vSphere.
Serial ports per virtual machine
Video memory per virtual machine
Concurrent remote console connections to a virtual machine