Replacing a caching module

To replace a caching module referred to as the M.2 PCIe card on the label on your controller, locate the slot inside the controller and follow the specific sequence of steps.

Before you begin

Your storage system must meet certain criteria depending on your situation:
  • It must have the appropriate operating system for the caching module you are installing.
  • It must support the caching capacity.
  • Although the contents of the caching module is encrypted, it is a best practice to erase the contents of the module before replacing it. For more information, see the Statement of Volatility for your system on the NetApp Support Site.
    Note: You must log into the NetApp Support Site to display the Statement of Volatility for your system.
  • All other components in the storage system must be functioning properly; if not, you must contact technical support.


  1. If you are not already grounded, properly ground yourself.
  2. Locate the caching module at the rear of the controller module and remove it.
    1. Press the release tab.
    2. Remove the heatsink.
  3. Gently pull the caching module straight out of the housing.
  4. Align the edges of the caching module with the socket in the housing, and then gently push it into the socket.
  5. Verify that the caching module is seated squarely and completely in the socket.
    If necessary, remove the caching module and reseat it into the socket.
  6. Reseat and push the heatsink down to engage the locking button on the caching module housing.
  7. Close the controller module cover, as needed.