Disabling caching
You can disable caching globally, by disabling caching on the virtual machine, or locally, by disabling caching on individual disks.
Steps 
1.
From the home page of the FAMC, click the wrench icon for the VM you want to disable for caching and select Cache State > Disable.
From the home page of the FAMC, select each VM you want to disable for caching and click Cache State in the Bulk Actions area of the FAMC. In the cache state dialog box, select the Disable radio button and click Submit.
Note: Select Advanced in the wrench tool menu or Bulk Actions area to enable or disable caching, set the cache mode, and enable or disable cache metrics for VMs or disks in the same step.
2.
Note: You can view the disks for a VM by opening the details page for the VM. FAMC displays a Show Me menu in the left pane. Click VM Disks to navigate to the disks page.
From the disks page of the FAMC, click the wrench icon for the disk you want to disable for caching and select Cache State > Disable.
From the disks page of the FAMC, select each disk you want to disable for caching and click Cache State in the Bulk Actions area of the FAMC. In the cache state dialog box, select the Disable radio button and click Submit.
Result 
The Cache State field for the virtual machine or disks is set to Disabled.
After you finish 
Remember that disabling caching on a virtual machine effectively disables caching on all its disks. If caching seems not to be working properly for a disk, make sure that caching is enabled on both the disk and the virtual machine.
Parent Topic: Setting the cache state for virtual machines and disks