• Green—The server is operating at normal temperature.
• Amber, steady—One or more temperature sensors
breached the critical threshold.
• Amber, blinking—One or more temperature sensors
breached the non-recoverable threshold.
Temperature status9
• Off—The drive is idle.
• Green, steady—The drive is spinning up a disk.
• Green, blinking—The drive is accessing data.
DVD drive activity10
Rear-Panel LEDs
Figure 12: Rear Panel LEDs
Table 3: Rear Panel LEDs, Definition of States
StatesLED Name
• Off—Link speed is 100 Mbps.
• Amber—Link speed is 1 Gbps.
• Green—Link speed is 10 Gbps.
1-Gb/10-Gb Ethernet link speed (on both LAN1 and LAN2)1
• Off—No link is present.
• Green—Link is active.
• Green, blinking—Traffic is present on the active link.
1-Gb/10-Gb Ethernet link status (on both LAN1 and LAN2)2
Cisco UCS C240 M5 Server Installation and Service Guide
35
Maintaining the Server
Rear-Panel LEDs