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• The replacement controller is the new controller that replaced the degraded controller as part of this
procedure.
• The healthy controller is the HA partner of the replacement controller
Step 1.
In admin privilege on the replacement controller, check the system time on the controllers:
date show
The date and time are displayed for all controllers in the cluster.
Step 2.
If necessary, set the time on the replacement controller to match the healthy controller:
modify -dateandtime "target_date_and_time"
Step 3.
Check the date and time from the replacement controller:
Step 4.
Exit admin privilege.
Completing the replacement process
After you replace the part, you can return the failed part to Lenovo, as described in the RMA instructions
shipped with the kit. Contact technical support at
additional help with the replacement procedure.
Important information after replacing the controller module
Important: Please contact your Lenovo support personnel to obtain replacement licenses for your new
controller.
Replacing a PCIe card
To replace a PCIe card, you must perform a specific sequence of tasks.
• You can use this procedure with all versions of ONTAP supported by your system
• All other components in the system must be functioning properly; if not, you must contact technical
support.
Shutting down the degraded controller
You can shut down or take over the degraded controller using different procedures, depending on the
storage system hardware configuration.
Shutting down the controller
To shut down the degraded controller, you must determine the status of the controller and, if necessary, take
over the controller so that the healthy controller continues to serve data for the degraded controller's
storage.
Before you begin
• If you have a cluster with more than two controllers, check the health and Epsilon from advanced mode:
cluster show -epsilon*
• If the cluster is not in quorum or a controller that is not the degraded controller shows
and health, correct the issue before proceeding to the next step.
Step 1.
If Epsilon resides in the degraded controller:
a.
Remove Epsilon from the degraded controller:
b.
Assign Epsilon to a healthy controller in the cluster:
true
ThinkSystem DM7000x Hardware Installation and Maintenance Guide
54
cluster date show
Lenovo Data Center Support
cluster modify -node impaired_node -epsilon false
cluster modify -node healthy_node -epsilon
cluster
cluster date
if you need the RMA number or
for eligibility
false
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