Node canister indicators

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Each node canister has five Light-Emitting Diode (LED) indicators that display the state of the individual canister and the node.

Figure 1 shows the LEDs on a canister.

Figure 1. Canister and node status LEDs
Canister and node status LEDs
  •  1  Canister power LED
  •  2  Battery status LED
  •  3  Node status LED
  •  4  Activity LED
  •  5  Canister fault LED
Table 1 describes the various LED states that you might observe.
Table 1. Canister and node status LED descriptions
LED Name Icon Color States
 1  Canister power Power icon Green
  • OFF – No external power is supplied to the canister.
  • ON – The canister is in a power-on state.
  • SLOW FLASH – The canister is in standby mode.
  • FAST FLASH – The BIOS is in POST.
 2  Battery status Battery icon Green
  • OFF – The battery has a fault or is otherwise not available for use.
  • ON – The battery is fully charged and can support two fire hose dumps (FHDs).
  • FLASH – The battery is charging but it can support a single fire hose dump. (FHD).
  • FAST FLASH – The battery is charging but has insufficient charge to complete a single fire hose dump. (FHD).
 3  Node status Status icon Green
  • OFF – The canister is in standby mode (the CPU is off , POST is running, or the operating system is loading), or power is not supplied to the canister.
  • ON – The node is in active state (part of a cluster).
  • FLASH – The node is in candidate or service state. It is safe to remove the node.
  • FAST FLASH – A destage is occurring.
 4  Activity Activity icon Green

Not used
 5  Canister fault Fault icon Amber
    • OFF – There are no isolated FRU failures in the canister.
    • ON –An FRU in the canister has failed, and requires service or replacement.
    • FLASHING – The node is being identified.

Node port indicators

Each Node canister Ethernet port has a pair of green LEDs with the following meanings. Table 2 describes the LED indicators.
Table 2. Onboard Ethernet port LEDs
Name Symbol Color State Meaning
Link speed None Green OFF No link connection or the link is connected at less than 1 Gbps.
ON There is a 1 Gbps link connection to a remote device.
Activity None Green OFF No activity.
FLASHING Activity on link.