Question: 

How do I disable hyper-threading on a Versa 810/FW-3260 device?

Solution:

Note : Versa has already asked all the vendors to send the whitebox appliances with the hyper-threading disabled. 

But in case they send them with non-versa certified configuration, we need to follow below procedure

Follow these steps to disable hyper-threading on a Versa Appliance

1. Run the sudo reboot CLI command to reboot the device or use the power cycle to reboot.
   

2. Press the F2 or DEL keyboard button to enter the BIOS setup when the initial boot-up screen appears after the reboot in step 1.
   

3. Use the arrows keys on the keyboard and navigate to the Hardware Menu.
   

4. Select the CPU configuration in the sub-menu
   

5. Select Hyper-Threading option and press Enter on the keyboard.
   1. Select Disabled option.

   2. Press Enter to save the configuration and exit to the main CPU menu.
      

6. Press F4 to save and exit the BIOS setup.
   
   
   

7. Press Enter to reboot the device.
   
   

8. Run the iscpu linux command to verify hyper-threading disablement. Use this command to also check the Total CPU count and Thread per Core.