nvmem-nvram-battery-replace.adoc

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fas8200/nvmem-nvram-battery-replace.html	sidebar	fas8200, replace the nvmem battery	To replace an NVMEM battery in the system, you must remove the controller module from the system, open it, replace the battery, and close and replace the controller module.

Replace the NVMEM battery - FAS8200

To replace an NVMEM battery in the system, you must remove the controller module from the system, open it, replace the battery, and close and replace the controller module.

All other components in the system must be functioning properly; if not, you must contact technical support.

Step 1: Shut down the impaired controller

You can shut down or take over the impaired controller using different procedures, depending on the storage system hardware configuration.

Option 1: Most configurations

../_include/shutdown_most_frus.adoc

Option 2: Controller is in a two-node MetroCluster

../_include/shutdown_2n_mcc.adoc

Step 2: Open the controller module

To access components inside the controller, you must first remove the controller module from the system and then remove the cover on the controller module.

1. If you are not already grounded, properly ground yourself.

2. Loosen the hook and loop strap binding the cables to the cable management device, and then unplug the system cables and SFPs (if needed) from the controller module, keeping track of where the cables were connected.

   Leave the cables in the cable management device so that when you reinstall the cable management device, the cables are organized.

3. Remove and set aside the cable management devices from the left and right sides of the controller module.

   

4. Loosen the thumbscrew on the cam handle on the controller module.

   

   	Thumbscrew
   	Cam handle

5. Pull the cam handle downward and begin to slide the controller module out of the chassis.

   Make sure that you support the bottom of the controller module as you slide it out of the chassis.

Step 3: Replace the NVMEM battery

To replace the NVMEM battery in your system, you must remove the failed NVMEM battery from the system and replace it with a new NVMEM battery.

1. Check the NVMEM LED:

   • If your system is in an HA configuration, go to the next step.

   • If your system is in a stand-alone configuration, cleanly shut down the controller module, and then check the NVRAM LED identified by the NV icon.

     

     Note	The NVRAM LED blinks while destaging contents to the flash memory when you halt the system. After the destage is complete, the LED turns off.

     • If power is lost without a clean shutdown, the NVMEM LED flashes until the destage is complete, and then the LED turns off.

     • If the LED is on and power is on, unwritten data is stored on NVMEM.

       This typically occurs during an uncontrolled shutdown after ONTAP has successfully booted.

2. Open the CPU air duct and locate the NVMEM battery.

   

   	Battery lock tab
   	NVMEM battery pack

3. Grasp the battery and press the blue locking tab marked PUSH, and then lift the battery out of the holder and controller module.

4. Remove the replacement battery from its package.

5. Align the tab or tabs on the battery holder with the notches in the controller module side, and then gently push down on the battery housing until the battery housing clicks into place.

6. Close the CPU air duct.

   Make sure that the plug locks down to the socket.

Step 4: Reinstall the controller

After you replace a component within the controller module, you must reinstall the controller module in the system chassis and boot it.

1. Align the end of the controller module with the opening in the chassis, and then gently push the controller module halfway into the system.

   Note	Do not completely insert the controller module in the chassis until instructed to do so.

2. Recable the system, as needed.

   If you removed the media converters (QSFPs or SFPs), remember to reinstall them if you are using fiber optic cables.

3. Complete the reinstallation of the controller module:

   The controller module begins to boot as soon as it is fully seated in the chassis.

   1. With the cam handle in the open position, firmly push the controller module in until it meets the midplane and is fully seated, and then close the cam handle to the locked position.

      Note	Do not use excessive force when sliding the controller module into the chassis to avoid damaging the connectors.

   2. Tighten the thumbscrew on the cam handle on back of the controller module.

   3. If you have not already done so, reinstall the cable management device.

   4. Bind the cables to the cable management device with the hook and loop strap.

Step 5: Switch back aggregates in a two-node MetroCluster configuration

../_include/2n_mcc_switchback.adoc

Step 6: Return the failed part to NetApp

../_include/complete_rma.adoc