This topic describes how to troubleshoot upgrade errors that may occur when you upgrade a Cloud Storage Gateway (CSG) instance.
If your CSG instance is severely outdated, it may take a long time to upgrade the instance to the latest version. No other operations are required during the upgrade. Wait until the upgrade process is completed.
If the upgrade fails, the instance automatically rolls back to the original version before the upgrade and an error message appears. If the rollback fails, an error message appears in the CSG console. Submit a ticket that includes the error message.