Home » VMware » VCP550D » Which two settings could cause hardware acceleration to become disabled?
An administrator has configured hardware acceleration for a Fibre Channel storage array. After a recent maintenance event, the administrator finds that cloning and migration operations are taking excessively long to complete.
Which two settings could cause hardware acceleration to become disabled? (Choose two.)
A. VAAI Plugin Name = VMW_VAAIP_SYM
B. VAAI Plugin Name = VMW_VAAIP_NETAPP
C. VMFS3.HardwareAcceleratedLocking = 0
D. Datamover.HardwareAcceleratedInit = 0
Correct Answer: CD
Explanation/Reference:
Explanation:
The VMFS3.HardwareAcceleratedLocking = 0 setting or the Datamover.HardwareAcceleratedInit = 0 setting will disable hardware acceleration.
Disable Hardware Acceleration for Block Storage Devices in the vSphere Web Client
On your host, the hardware acceleration for block storage devices is enabled by default. You can use the vSphere Web Client advanced settings to disable the hardware acceleration operations.
As with any advanced settings, before you disable the hardware acceleration, consult with the VMware support team.
Procedure
Browse to the host in the vSphere Web Client navigator.
Click the Manage tab, and click Settings.
Under System, click Advanced System Settings.
Change the value for any of the options to 0 (disabled):
VMFS3.HardwareAcceleratedLocking
DataMover.HardwareAcceleratedMove
DataMover.HardwareAcceleratedInit
Incorrect Answers:
A: This setting does not disable hardware acceleration. Therefore, this answer is incorrect.
B: This setting does not disable hardware acceleration. Therefore, this answer is incorrect.
References:
http://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-A8B3C8B2-2D7E-4FB8-A707-9369EEA38288.html