Specifications

Summit WM Technical Reference Guide, Software Version 5.3 79
NOTE
The hot swap lever is not enabled in the current release. Pulling the hot swap lever will not affect the normal
operation if the Summit WM Controller WM20 is already running. However, if you attempt to reboot the Summit WM
Controller WM20 with the hot swap lever pulled out, the controller will fail to reboot. If you pull the hot swap lever
while the Summit WM Controller WM20 is in operation, the Hot Swap LED will light up.
Summit WM Controller WM20 LED states and corresponding system states
NOTE
LED 3 – HDDActivity LED – Orange/Amber
• HDDActivity LED is off when HDD is not in use
• HDDActivity LED is on when HDD is in use
LED 4 – Hot Swap LED – Blue
• Solid Blue when the hot swap lever is pulled out
Summit WM Controller WM20 protocols
The Summit WM Controller WM20 uses similar protocols to the Summit WM Controller WM200/2000.
For more information, see “Summit WM Controller WM200/2000 protocols” on page 74.
Table 24: Summit WM Controller WM20 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