NetApp HCI Manual page 210

Upgrade state
Upgrade Pausing
Paused
Error
What happens if an upgrade fails using NetApp Hybrid Cloud Control
If a drive or node fails during an upgrade, the Element UI will show cluster faults. The upgrade process does
not proceed to the next node, and waits for the cluster faults to resolve. The progress bar in the UI shows that
the upgrade is waiting for the cluster faults to resolve. At this stage, clicking Pause in the UI will not work,
because the upgrade waits for the cluster to be healthy. You will need to engage NetApp Support to assist with
the failure investigation.
NetApp Hybrid Cloud Control has a pre-set three-hour waiting period, during which one of the following
scenarios can happen:
• The cluster faults get resolved within the three-hour window, and upgrade resumes. You do not need to
take any action in this scenario.
• The problem persists after three hours, and the upgrade status shows Error with a red banner. You can
resume the upgrade by clicking Resume after the problem is resolved.
• NetApp Support has determined that the upgrade needs to be temporarily aborted to take corrective action
before the three-hour window. Support will use the API to abort the upgrade.
Aborting the cluster upgrade while a node is being updated might result in the drives being
ungracefully removed from the node. If the drives are ungracefully removed, adding the

drives back during an upgrade will require manual intervention by NetApp Support. The node
might be taking longer to do firmware updates or post update syncing activities. If the
upgrade progress seems stalled, contact NetApp Support for assistance.
Use NetApp Hybrid Cloud Control API to upgrade storage firmware
You can use APIs to upgrade storage nodes in a cluster to the latest Element software version. You can use an
automation tool of your choice to run the APIs. The API workflow documented here uses the REST API UI
available on the management node as an example.
Steps
Description
You can choose to pause the upgrade. Depending on
the state of the upgrade process, the pause operation
can succeed or fail. You will see a UI prompt asking
you to confirm the pause operation. To ensure that the
cluster is in a safe spot before pausing an upgrade, it
can take up to two hours for the upgrade operation to
be completely paused. To resume the upgrade, click
Resume.
You paused the upgrade. Click Resume to resume
the process.
An error has occurred during the upgrade. You can
download the error log and send it to NetApp Support.
After you resolve the error, you can return to the page,
and click Resume. When you resume the upgrade,
the progress bar goes backwards for a few minutes
while the system runs the health check and checks
the current state of the upgrade.