User guide
Summit WM20 Controller
Summit WM20 User Guide, Software Release 4.2240
● STATUS LED – Indicates the normal state of the Summit WM Controller as seen by the system’s
software. This LED covers all stages of the Summit WM Controller, ranging from restarting, to
shutting-down. As long as the Summit WM Controller is running normally, this LED will remain lit.
● HDD Activity LED – Is hardware controlled to report Hard Drive Device (HDD) activity. The LED
blinks when the HDD is in use (read/write operation).
● Hot Swap LED – Indicates that the hot swap lever on the Summit WM20 Controller is pulled out.
Summit WM20 Controller LED States and Corresponding System
States
Table 21: Summit WM20 Controller LED States and Corresponding System States
System state Status LED Activity LED
Power up (BIOS, POST) Blinking Amber Green
System booting (failed to boot) Off Green
Startup Manager: Task Started Solid Amber Blinking Amber
Startup Manager: Task completes the startup —
All components active
Solid Green Blinking Green upon traffic activity
A component fails to start or needs restarting
(Startup Manager Task retrying that component)
Solid Amber Blinking Green
Possible hardware failure (fan, temperature) Green Blinking Red
A component fails (no more retries) Solid Red Off
System about to reset by the watchdog Blinking Red Off
System shutdown/halt (Requires manual reboot) Solid Red Solid Red