IBM N7800 Hardware And Service Manual page 126

Reinstalling the motherboard tray and entering Maintenance
mode
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,
6. Reboot the node and press Ctrl-C to enter the boot menu when prompted. If
7. Enter y when prompted to acknowledge the system ID mismatch due to the
8. Select the option to boot to Maintenance mode from the displayed menu.
Reassigning disks on a system operating in 7-Mode
You must reassign disks before you boot the software. Some of the steps are
different depending on whether the system is stand-alone or in an HA pair .
About this task
v You must apply the commands in these steps on the correct systems:
v Do not issue any commands relating to aggregates until the entire procedure is
v If your system has 500 or more disk drives, the version of Data ONTAP you are
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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.
you did not press Ctrl-C in time, you can reboot the node again and press
Ctrl-C when prompted.
new NVRAM adapter:
Acknowledge the system ID mismatch:
...
Restoring /var from CF.
WARNING: System id mismatch. This usually occurs when replacing CF or NVRAM cards!
Override system (y|n)? [n] y
– The impaired node is the node on which you are performing maintenance.
– The healthy node is the HA partner of the impaired node.
completed.
running determines whether you can reassign the disks:
If you are running this version of Data
ONTAP...
v 8.0.3 or later in the 8.0 release family
8.1.1 or later in the 8.1 release family
v
Then...
The operation is supported but you must
contact technical support for assistance.