NetApp StorageGRID Webscale SG5700 Series Hardware Installation And Maintenance Manual page 59

About this task
You can determine if you have a failed controller canister in two ways:
• The Recovery Guru in SANtricity System Manager directs you to replace the controller.
• The amber Attention LED on the controller is on, indicating that the controller has a fault.
The appliance Storage Node will not be accessible when you replace the controller. If the E2800
controller is functioning sufficiently, you can shut down the E5700SG controller before replacing the
E2800 controller.
When you replace a controller, you must remove the battery from the original controller and install it
in the replacement controller.
Note: The E2800 controller in the appliance does not include a host interface card (HIC), so you
can skip those instructions in the E2800 controller replacement procedure.
Steps
1. Follow the instructions in the E2800 controller replacement procedure to prepare to remove the
controller.
You use SANtricity System Manager to perform these steps.
a. Make a note of which version of SANtricity OS software is currently installed on the
controller.
b. Make a note of which version of NVSRAM is currently installed.
c. If the Drive Security feature is enabled, be sure a saved key exists and that you know the pass
phrase required to install it.
Possible loss of data access – If all drives in the appliance are security enabled,
Attention:
the new controller will not be able to access the appliance until you unlock the secured
drives using the Enterprise Management Window in SANtricity Storage Manager.
d. Back up the configuration database.
If a problem occurs when you remove a controller, you can use the saved file to restore your
configuration.
e. Collect support data for the appliance.
Collecting support data before and after replacing a component ensures you can send
Note:
a full set of logs to technical support in case the replacement does not resolve the problem.
2. If the E2800 controller is functioning sufficiently to allow for a controlled shutdown, shut down
the E5700SG controller.
a. From the service laptop, log in to the grid node:
i. Enter the following command:
ii. Enter the password listed in the
iii. Enter the following command to switch to root:
iv. Enter the password listed in the
When you are logged in as root, the prompt changes from
b. Stop all StorageGRID Webscale services:
/etc/init.d/servermanager stop
Maintaining a StorageGRID Webscale appliance | 59
ssh admin@grid_node_IP
file.
Passwords.txt
su -
file.
Passwords.txt
$
to .
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