Which two VMware features will not allow an adapter to transition from Cisco VM-FEX standard
mode to universal passthrough mode? (Choose two.)
A.
VM Snapshot
B.
Volume Shadow Copy
C.
Storage vMotion
D.
HA
E.
Resource Reservations
Which two VMware features will not allow an adapter to transition from Cisco VM-FEX standard mode to universal passthrough mode?
Which two VMware features will not allow an adapter to transition from Cisco VM-FEX standard
mode to universal passthrough mode? (Choose two.)
With VMware, high-performance mode also supports vMotion. During vMotion, the hypervisor reconfigures links in high-performance mode to be in standard mode, transitions the link to the new hypervisor, and then reconfigures the link to be in high-performance mode. The following figure shows how VM-FEX operates in high-performance mode with vMotion.
http://www.cisco.com/en/US/docs/unified_computing/ucs/sw/vm_fex/vmware/gui/config_guide/2.1/b_GUI_VMware_VM-FEX_UCSM_Configuration_Guide_2_1_chapter_01.html#concept_6576F5D171814916B16BEDFDE2C3A698
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:
■
Hot adding and removing of virtual devices
■
Suspend and resume
■
Record and replay
■
Fault tolerance
■
High availability
■
DRS (limited availability. The virtual machine can be part of a cluster, but cannot migrate across hosts)
■
Snapshots
Cisco Unified Computing Systems (UCS) through Cisco Virtual Machine Fabric Extender (VM-FEX) distributed switches support the following features for migration and resource management of virtual machines which use DirectPath I/O:
■
vMotion
■
Hot adding and removing of virtual devices
■
Suspend and resume
■
High availability
■
DRS
■
Snapshots
http://www.aiotestking.com/cisco/which-two-vmware-features-will-not-allow-an-adapter-to-transition-from-cisco-vm-fex-standard-mode-to-universal-passthrough-mode/
from the comment above I would say B + E