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48 | StorageGRID Webscale 10.4 Appliance Installation and Maintenance Guide
Replacing an operational E2700 controller
You might need to replace an operational E2700 controller if it is not functioning optimally. For
example, you might need to replace an operational controller that repeatedly hangs and needs to be
rebooted or one that does not always reboot successfully.
About this task
If both controllers are functioning sufficiently to allow for a controlled shutdown, you can shut down
the E5600SG controller to interrupt the connectivity to the E2700 controller.
Steps
1. Put on antistatic protection.
2. Label each cable attached to the E2700 controller, so you can reconnect the cables correctly.
3. If the StorageGRID Webscale appliance is running in a StorageGRID Webscale system, shut
down the E5600SG 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
Once logged in as root, the prompt changes from
b. Stop all StorageGRID Webscale services:
/etc/init.d/servermanager stop
c. Shut down the E5600SG controller:
shutdown -h now
Shutting down the E5600SG controller interrupts the connectivity to the E2700 controller, so
you can replace it.
4. Turn off power to the enclosure, which turns power off to both controllers.
5. Wait until all LED and seven-segment display activity on the rear of the controller has stopped.
6. Remove the cables.
7. Remove the controller, as described in the E2700 controller documentation.
8. Insert the new controller, as described in the E2700 controller documentation.
9. Replace all cables.
10. Turn the power on to the controller.
11. Monitor the seven-segment codes.
•
E2700 controller:
The final LED state is
•
E5600SG controller:
The final LED state is
ssh admin@grid_node_IP
Passwords.txt
Passwords.txt
.
99
for version 1.5 or later, or
HA
file.
su -
file.
to
.
$
#
for version 1.3.
SG
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