SC4020 Storage System Storage Controller Features and IndicatorsThe SC4020 storage system includes two storage controllers in two interface slots.SC4020 Storage System Storage Controller with Fibre Channel Front-End PortsThe following figures show the features and indicators on a storage controller with Fibre Channel front-end ports.Figure 9. SC4020 Storage System Storage Controller with Four 8 Gb Fibre Channel Front-End PortsFigure 10. SC4020 Storage System Storage Controller with Two 16 Gb Fibre Channel Front-End PortsItem Control/Feature Icon Description1 Battery status indicator • Blinking green (on 0.5 sec. / off 1.5 sec.): Battery heartbeat• Fast blinking green (on 0.5 sec. / off 0.5 sec.): Battery ischarging• Steady green: Battery is ready2 Battery fault indicator • Off: No faults• Blinking amber: Correctable fault detected• Steady amber: Uncorrectable fault detected; replace battery3 MGMT port (Slot 3/Port1)— Ethernet/iSCSI port that is typically used for storage systemmanagement and access to the BMCNOTE: The MGMT port can be used as an iSCSI port forreplication to another Storage Center or as a front-endiSCSI port for connections to host servers.4 iSCSI port (Slot 3/Port 2) — Ethernet/iSCSI port that is typically used for replication toanother Storage Center (requires a replication license)About the SC4020 Storage System 19
