Dell SC4020 Deployment Manual page 32

SC280 Expansion Enclosure EMM Features and Indicators
An SC280 includes two enclosure management modules (EMMs) in two Storage Bridge Bay (SBB)
interface slots.
Figure 24. SC280 Expansion Enclosure EMM Features and Indicators
Item Control/
Feature
1 Fault LED
2 Power LED
3 Console port
4 SAS ports
5 SAS activity
indicators
32
Icon Description
• Off — Module OK
• Amber — Module fault
• Green (steady) — Module OK
• Green (flashing) — Vital product data (VPD) fault
• Off — Module fault
— Not for customer use
— Connects to a storage controller or to another SC280
expansion enclosure.
— There are four SAS PHYs per SAS port.
• Off: SAS PHY is not connected
• Steady green: SAS PHY is connected, but no activity
• Blinking green: SAS PHY is not connected plus
activity
About the SC4020 Storage System