IBM N6270, Hardware And Service Manual

Page: 121 / 148

If... Then...
The target node took over the partner node
1. Correct the problem that caused the
takeover.
2. Enter the
cf giveback
command
(7-Mode) or
storage failover giveback
-fromnode nodename
command (Clustered
Data ONTAP) from the target node
console.
3. Go back to the beginning of this
procedure.
3.
Take over the target node by entering one of the following commands from the
partner node’s console:
For... Issue the command...
7-Mode cf takeover
Clustered Data ONTAP storage failover takeover -bynode node
Shutting down the node in a stand-alone system
For a node that is in a stand-alone configuration, you must perform a clean
shutdown to ensure that all data has been written to disk and disconnect the
power supplies.
Procedure
1. Enter the following commands from the system console:
If your system is configured in... Then issue this command...
7-Mode
halt
Clustered Data ONTAP
halt local
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 nonvolatile memory
(NVMEM). The NVMEM LED is located on the controller module to the right
of the network ports, marked with a battery symbol. If the NVMEM LED is
flashing, there is content in the NVMEM that has not been saved to disk. You
need to reboot the controller module and proceed from the beginning of this
procedure. If repeated attempts to cleanly shut down the controller module fail,
be aware that you might lose any data that was not saved to disk.
Replacing N6200 series system devices
95