NetApp AFF A Series User Manual

Step 3: Replace the DIMMs
To replace the DIMMs, locate them inside the controller and follow the specific sequence
of steps.
If you are replacing a DIMM, you need to remove it after you have unplugged the NVMEM battery from the
controller module.
Steps
1. If you are not already grounded, properly ground yourself.
2. Check the NVMEM LED on the back of controller module.
You must perform a clean system shutdown before replacing system components to avoid losing unwritten
data in the nonvolatile memory (NVMEM). The LED is located on the back of the controller module. Look
for the following icon:
3. If the NVMEM LED is not flashing, there is no content in the NVMEM; you can skip the following steps and
proceed to the next task in this procedure.
4. If the NVMEM LED is flashing, there is data in the NVMEM and you must disconnect the battery to clear
the memory:
a. Locate the battery, press the clip on the face of the battery plug to release the lock clip from the plug
socket, and then unplug the battery cable from the socket.
b. Confirm that the NVMEM LED is no longer lit.
83

NetApp AFF A Series Specifications

General

Brand	NetApp
Model	AFF A Series
Category	Server
Language	English