5. Locate the empty battery holder in the controller module.
6. Note the polarity of the RTC battery, and then insert it into the holder by tilting the battery at an angle and
pushing down.
7. Visually inspect the battery to make sure that it is completely installed into the holder and that the polarity is
correct.
8. Reinstall the controller module cover.
Step 4: Reinstall the controller module and set time/date
After you replace the RTC battery, you must reinstall the controller module. If the RTC battery has been left out
of the controller module for more than 10 minutes, you may have to reset the time and date.
1. If you have not already done so, close the air duct or controller module cover.
2. Align the end of the controller module with the opening in the chassis, and then gently push the controller
module halfway into the system.
Do not completely insert the controller module in the chassis until instructed to do so.
3. 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.
4. If the power supplies were unplugged, plug them back in and reinstall the power cable retainers.
5. Complete the reinstallation of the controller module:
a. 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.
Do not use excessive force when sliding the controller module into the chassis to avoid
damaging the connectors.
b. If you have not already done so, reinstall the cable management device.
c. Bind the cables to the cable management device with the hook and loop strap.
d. Reconnect the power cables to the power supplies and to the power sources, and then turn on the
power to start the boot process.
e. Halt the controller at the LOADER prompt.
6. Reset the time and date on the controller:
a. Check the date and time on the healthy node with the
show date
command.
b. At the LOADER prompt on the target node, check the time and date.
c. If necessary, modify the date with the
set date mm/dd/yyyy
command.
d. If necessary, set the time, in GMT, using the
set time hh:mm:ss
command.
e. Confirm the date and time on the target node.
7. At the LOADER prompt, enter
bye
to reinitialize the PCIe cards and other components and let the node
reboot.
8. Return the node to normal operation by giving back its storage:
storage failover giveback
-ofnode impaired_node_name
782
