For hardware issues, such as component hardware failure, link degraded between compute and storage controllers, etc., use the StorageGRID Appliance Chassis serial number, located in GRID Manager -> No...For hardware issues, such as component hardware failure, link degraded between compute and storage controllers, etc., use the StorageGRID Appliance Chassis serial number, located in GRID Manager -> Nodes -> Hardware tab For software issues, such as performance degradation, ingest and retrieval errors, GRID services alerts, object alerts, use the StorageGRID System ID or the License Serial Number, located in GRID Manager -> Maintenance -> License