IBM N7700, Руководство по аппаратуре и обслуживанию, Страница: 121 / 182

If... Then...
Neither node is in takeover mode Shut down the target node by entering the
halt command from the target node's
console.
Note:
You can also run the
cf takeover
command from the partner node's console.
The partner node took over the target node The target node is in a state where you can
begin removing it from the system chassis.
The target node took over the partner node
1. Correct the problem that caused the
takeover.
2. Run the
cf giveback
command from the
target node console.
3. Shut down the target node by entering
the
halt
command from the target node's
console.
3. Take over the target node by entering the following command from the partner
node’s console:
cf takeover
4. If you are not already grounded, properly ground yourself.
5. Turn off the power supplies and disconnect the power on the target node.
If your system uses... Then...
AC power Unplug the power cords from the power
source, and then remove the power cords.
DC power Remove the power at the DC source.
Remove the DC wires, if necessary.
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. Halt the system from the system console:
halt
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
command, reboot
your system and try halting it again.
2. If you are not already grounded, properly ground yourself.
3. Turn off the power supplies and unplug both power cords from the power
source:
If your system uses... Then...
AC power supplies Unplug the power cords from the power
source, and then remove the power cords.
DC power supplies Remove the power at the DC source, and
remove the DC wires, if necessary.
Chapter 5. Replacing N7000 series system devices
95