IBM N7800 Hardware And Service Manual page 158

3. Take over the target node by entering the following command from the partner
4.
5. Turn off the power supplies and disconnect the power on the target node.
Shutting down the node in a stand-alone system
For a node that is not configured with a high-availability (HA) partner, you must
perform a clean shutdown (ensuring that all data has been written to disk) and
disconnect the power supplies.
Procedure
1. Enter the following command from the system console:
2. If you are not already grounded, properly ground yourself.
3. Turn off the power supplies and unplug both power cords from the power
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IBM System Storage: N7000 Series Hardware and Service Guide
If...
The target node took over the partner node
node's console:
For...
7-Mode
Cluster-Mode
If you are not already grounded, properly ground yourself.
If your system uses...
AC power
DC power
If your system is configured in...
7-Mode
Cluster-Mode
After you issue the command, wait until the system stops at the LOADER
prompt.
Attention: You must perform a clean system shutdown before replacing
system components to avoid losing unwritten data in the NVRAM. The
NVRAM adapter has a red LED that blinks if there is unwritten data in the
NVRAM. If this LED is flashing red after you enter the halt local command,
reboot your system and try halting it again.
source:
If your system uses...
AC power
Then...
1. Correct the problem that caused the
takeover.
2. Run the storage failover giveback or
cf giveback command from the target
node console.
3. Go back to the beginning of this
procedure.
Issue the command...
cf takeover
storage failover takeover -bynode node
Then...
Unplug the power cords from the power
source, and then remove the power cords.
Remove the power at the DC source, and
then remove the DC wires, if necessary.
Then issue this command...
halt
halt local
Then...
Unplug the power cords from the power
source, and then remove the power cords.