Item Name Icon Description6 AC power statusindicator (2)• Off: AC power is off, or the power is on but the module isnot in a controller, or it may indicate a hardware fault• Steady green: AC power is on• Blinking green: AC power is on and the PSU is in standbymode7 DC power faultindicator (2)• Off: Normal operation• Steady amber: A PSU has been removed, or there is a DCor other hardware fault, or there is a problemcommunicating with the PSU• Blinking amber: PSU is in programming mode8 Power socket (2) — Accepts a standard computer power cord.9 Power switch (2) — Controls power for the storage system. There is one switch foreach power supply/cooling fan module.SCv2000/SCv2020 Storage Controller Features and IndicatorsThe SCv2000/SCv2020 includes up to two storage controllers in two interface slots.The storage controllers support Fibre Channel, iSCSI, or SAS front-end ports.SCv2000/SCv2020 Storage Controller with Fibre Channel Front-End PortsFeatures and indictors on a storage controller with Fibre Channel front-end ports.Figure 3. Storage Controller with Four 8 Gb Fibre Channel Front-End PortsFigure 4. 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 ischarging10 About the SCv2000/SCv2020 Storage System