6.0

Table Of Contents
DirectPath I/O
DirectPath I/O allows virtual machine access to physical PCI functions on platforms with an I/O Memory
Management Unit.
The following features are unavailable for virtual machines configured with DirectPath:
n
Hot adding and removing of virtual devices
n
Suspend and resume
n
Record and replay
n
Fault tolerance
n
High availability
n
DRS (limited availability. The virtual machine can be part of a cluster, but cannot migrate across hosts)
n
Snapshots
The following features are only available for virtual machines configured with DirectPath I/O on Cisco
Unified Computing Systems (UCS) through Cisco Virtual Machine Fabric Extender (VM-FEX) distributed
switches.
n
vMotion
n
Hot adding and removing of virtual devices
n
Suspend and resume
n
High availability
n
DRS
n
Snapshots
See Cisco VM-FEX documentation for details on supported switches and switch configuration information.
Configure Passthrough Devices on a Host
You can configure passthrough networking devices on a host.
Prerequisites
Launch the vSphere Client and log in to a vCenter Server system.
Procedure
1 Select a host from the inventory panel of the vSphere Client.
2 On the Configuration tab, click Advanced Settings.
The Passthrough Configuration page appears, listing all available passthrough devices. A green icon
indicates that a device is enabled and active. An orange icon indicates that the state of the device has
changed and the host must be rebooted before the device can be used.
3 Click Edit.
4 Select the devices to be used for passthrough and click OK.
vSphere Administration with the vSphere Client
252 VMware, Inc.