IBM N7800 Hardware And Service Manual page 127

If you are running this version of Data
ONTAP...
v Any release in the 7.3 release family
v 8.0.2 or earlier in the 8.0 release family
v 8.1 in the 8.1 release family
Procedure
1. If you have not already done so, reboot the target node, interrupt the boot
process by entering Ctrl-C, and then select the option to boot to Maintenance
mode from the displayed menu. You must enter y when prompted to override
the system ID due to a system ID mismatch.
2. View the new system IDs by entering the following command:
disk show -v
Note: Make note of the new system ID, which is displayed in the Local System
ID field.
The following example contains the following information:
system-2 is the target node, which is undergoing maintenance.
v
system-1 is the partner node.
v
v The new system ID is 118065481.
v The old system ID is 118073209, which is still assigned to the disks owned by
system-2.
*> disk show -v
Local System ID: 118065481
DISK OWNER
-------- -------------
0b.29 system-1 (118065578) Pool0 J8XJE9LC
0a.27 system-2 (118073209) Pool0 J8Y478RC
.
.
.
3. If the controller module is in an HA pair, on the healthy node, enter the
following command to ensure that any coredumps on the replacement node are
saved:
partner savecore
4. Reassign disk ownership based on your system's configuration:
Then...
You cannot reassign more than 500 disks
from one controller to another by using the
disk reassign command. If you try to do
so, the system reports an error and you
must contact technical support.
POOL SERIAL NUMBER HOME
----- ------------- -------------
system-1 (118065578)
system-2 (118073209)
Chapter 5. Replacing N7000 series system devices
101