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 back of a control enclosure. Each node canister has its own set of indicators that identify the status of the node canister and its battery.
Figure 1. Rear view of a control enclosure
Rear view of the control enclosure
  •  1  Node canister power LED
  •  2  Node canister status LED
  •  3  Node canister fault LED
  •  4  Identify LED and button (Not used by software)
  •  5  Battery power
  •  6  Battery status
  •  7  Battery fault

Node canister status LED indicators

Figure 1 shows the location of the LED indicators and Table 1 summarizes the meaning and values of each indicator.
Table 1. Node canister status LED indicators
Name Color State Meaning
Power Green Off There is no external power to the canister.
Slow blink The canister is in a standby state.
Fast blink The BIOS is in Power On Self Test (POST).
solid The canister is in a power on state.
Status Green Off The Storage Virtualize software is not operational.
Fast blink Canister is performing de-stage activity, running on battery.
Solid The node is active and joined a cluster. The canister has state data that must be preserved on shut down. This normally means it is active in the cluster, handling I/O, but there is a transient starting state that is also covered (it is possible to get held in starting state if a quorum cannot be established, the alert then lights).
Fault Amber Off There are no isolated FRU failures on the canister.
Blink The canister is being identified using an identify command.
Solid There are one or more isolated FRU failures in the canister requiring service or replacement.

Battery status LED indicators

Each node canister also has a battery and two LED indicators for the battery status. If an AC power failure occurs, the battery provides power to the node canister as it stores cache and system data to an internal drive. This process is known as a fire hose dump. Figure 1 shows the location of the battery indicators and Table 2 describes the function and possible values for each indicator.
Table 2. Battery status LED indicators
Name Color State Meaning
Battery power Green Off Indicates that the battery is not in use.
Solid The battery module has DC input power or is providing power to the system.
Battery status Green Off Output is off or out of tolerance, unable to supply power to volatile cache memory and/or de-staging function.
Blink Indicates the battery is charging and CAN support at least one fire hose dump (FHD).
Fast blink Indicates the battery is charging, but cannot yet support at least one FHD.
Solid Indicates the battery is fully charged.
Battery fault Amber Off There have been NO isolated faults or conditions detected by the battery module that can be serviced using service indicators.
Blink The Battery has been identified.
Solid There has been a fault condition detected with battery that can be serviced using service indicators. The battery is in a condition that permits repair or replacement activity if removable.

Node port indicators

Figure 2. Management port LEDs and technician port LEDs
Management and technician port
  •  1  Management port LEDs
  •  2  Technician port LEDs
Table 3 describes the LED indicators.
Table 3. Ethernet port LEDs
Name Color State Meaning
Link Yellow Off There is no link established.
Slow blink Indicates that the port speed is at a lower data rate than the maximum for the port. Note that blink rates may indicate specific speeds that port supports other than the maximum.
Solid Indicates that the port speed is at the maximum data rate for the port.
Activity Green Off There is no link established.
Flashing There is network activity on the port.
Solid There is no activity on the port. However, there is a link established.