IBM N6270, Hardware And Service Manual

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3. Locate the empty battery holder in the controller module and insert the battery
into the holder.
4.
Visually inspect the battery to make sure that it is completely installed into the
holder and that the polarity is correct. There is a large “+” on the motherboard
indicating battery polarity.
Reinstalling the controller module and booting the system
After you replace a component within the controller module, you must reinstall the
controller module in the system chassis.
About this task
Note: For HA pairs with two controller modules in the same chassis, the sequence
in which you reinstall the controller module is especially important because it
attempts to reboot as soon as you completely seat it in the chassis.
Read this entire
section before you reinstall the controller module in an HA pair.
Procedure
1. Align the end of the controller module with the opening in the chassis, if
necessary, and then gently push the controller module halfway into the system.
2. Reinstall the cable management arms and recable the controller module, as
needed.
When recabling, remember to reinstall the media converters (SFPs) if you are
using fiber cables.
3.
Reinstall the controller module:
If your system is in... Then perform these steps...
An HA pair in which both controller
modules are in the same chassis
1. Be prepared to interrupt the boot
process.
The controller module begins to boot as
soon as it is fully seated in the chassis.
2. With the cam handle in the open
position, insert the controller module
into the chassis, firmly pushing until the
controller module meets the midplane,
and then close the cam handle so that
the latch clicks into the locked position
and the controller module is fully seated.
Attention: Do not use excessive force
when sliding the controller module into
the chassis; you might damage the
connectors.
3. As the system begins to boot, press Ctrl-c
to interrupt the boot process.
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IBM System Storage: N6200 Series Hardware and Service Guide