IBM N7800 Hardware And Service Manual page 136

Reinstalling the motherboard tray and booting the system
After you replace a component within the motherboard tray, you must reinstall the
motherboard tray in the system chassis and boot it to a state where you can run
diagnostic tests on the replaced component.
Procedure
1. Align the end of the motherboard tray with the opening in the chassis, if
2. Firmly push the cam handle to finish seating the motherboard tray in the
3. Tighten the thumbscrews on the cam handle and chassis frame.
4. Reinstall the cable management tray and recable the system, as needed.
5. Reconnect the power cables to the power supplies and to the power sources,
Reassigning disks
If the storage system is in an HA pair , the system ID of the new NVRAM adapter
is automatically assigned to the disks. In a stand-alone system, you must manually
reassign the ID to the disks.
About this task
If you are only changing the NVRAM battery and are not replacing the NVRAM
adapter, you do not need to reassign disks.
You must use the correct procedure for your configuration:
Verifying the system ID change on an HA system operating in 7-Mode:
You must confirm the system ID change when you boot the replacement node and
then verify that the change was implemented.
About this task
This procedure applies only to systems that are:
v Operating in 7-Mode
v In an HA pair
Procedure
1. If the replacement node is in Maintenance mode (showing the *> prompt), exit
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IBM System Storage: N7000 Series Hardware and Service Guide
necessary, and then gently push the motherboard tray into the system. The cam
handle begins to engage when the motherboard tray is properly seated all the
way inside the system.
system.
When recabling, remember to reinstall the media converters (SFPs) if you are
using fiber optic cables.
and then turn on the power.
Controller redundancy
HA pair
Stand-alone
Maintenance mode by entering the following command:
Then use this procedure...
Verifying the system ID change on a system operating in
7-Mode
Manually reassigning the system ID on a stand-alone system in
7-mode