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Step 1.
If your system has two controller modules, disable the HA pair.
If your system is running clustered ONTAP
with...
Two controllers in the cluster
More than two controllers in the cluster
Step 2.
Halt the controller, pressing
node_name
The confirmation message looks like the following:
Warning: Rebooting or halting node
"node_name" in an HA-enabled cluster may result in client disruption or data access
failure. To ensure continuity of service, use the "storage
failover takeover" command. Are you sure you want to halt node
"node_name"? {y|n}:
Attention: You must perform a clean system shutdown before replacing the chassis to avoid
losing unwritten data in the nonvolatile memory (NVMEM). 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 and start
from the beginning of this procedure. If repeated attempts to cleanly shut down the controller fail,
be aware that you might lose any data that was not saved to disk.
Step 3.
Where applicable, halt the second controller to avoid a possible quorum error message in an HA
pair configuration::
Swapping out a power supply
Swapping out a power supply when replacing a chassis involves turning off, disconnecting, and removing
the power supply from the old chassis and installing and connecting it on the replacement chassis.
About this task
A video for this task is available at:
• YouTube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-Atzbq4KHJgYQHkA9FCH0-m
Step 1.
If you are not already grounded, properly ground yourself.
Step 2.
Turn off the power supply and disconnect the power cables:
a.
Turn off the power switch on the power supply.
b.
Open the power cable retainer, and then unplug the power cable from the power supply.
c.
Unplug the power cable from the power source.
Step 3.
Squeeze the latch on the power supply cam handle, and then open the cam handle to fully release
the power supply from the mid plane.
when you are prompted to confirm the halt:
y
system node halt -node second_node_name -ignore-quorum-warnings true
Then...
cluster ha modify -configured false
storage failover modify -node node0 -enabled false
storage failover modify -node node0 -enabled false
system node halt -node
.
Chapter 5
Hardware replacement procedures
87
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