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b.
Assign Epsilon to a healthy controller in the cluster:
true
Step 2.
Disable automatic giveback from the console of the healthy controller using the following
command:
storage failover modify -node local -auto-giveback false
Step 3.
Take the degraded controller to the LOADER prompt by typing:
controller name>
If the degraded controller is displaying...
The LOADER prompt
Waiting for giveback...
System prompt or password prompt
Step 4.
If the system is in a dual-chassis HA pair, turn off the power supplies, and then unplug the
degraded controller's power cords from the power source.
Opening the controller module
To access components inside the controller, you must first remove the controller module from the system
and then remove the cover on the controller module.
About this task
A video for this task is available at:
• YouTube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-CZwRXsocAOmi5RsaXDVZQG
Step 1.
If you are not already grounded, properly ground yourself.
Step 2.
Loosen the hook and loop strap binding the cables to the cable management device, and then
unplug the system cables and SFPs (if needed) from the controller module, keeping track of where
the cables were connected. Leave the cables in the cable management device so that when you
reinstall the cable management device, the cables are organized.
Step 3.
Remove and set aside the cable management devices from the left and right sides of the controller
module.
ThinkSystem DM7000x Hardware Installation and Maintenance Guide
24
from the RJ45 Management Port of the degraded controller.
cluster modify -node healthy_node -epsilon
storage failover takeover <degraded
Then...
Go to the next step.
Press Ctrl-C, and then respond
prompted.
Take over or halt the degraded controller:
• Take over the degraded controller from the
healthy controller:
storage failover takeover
-ofnode impaired_node_name
When the degraded controller shows
Waiting for giveback..., press Ctrl-C, and
then respond
.
y
when
y
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