# System status LED not blinking

If you are using the USB flash drive to initialize the system for the first time and the status LED is not blinking, use the following instructions to resolve this issue.

## About this task

If the system status LED on the node canister that you are initializing is not blinking at a regular rate, the system cannot be initialized until this condition is resolved. The regular rate of blinking for the system status LED is approximately one half second on and one half second off. Complete the following steps until the system status LED is blinking at the regular rate:
Note: Unless stated, all the checks and actions are completed on the rear of the enclosure. Do not disturb any wiring or other equipment while you complete these tasks.

## Procedure

1. Ensure that you are looking at a control enclosure of the system that you want to initialize and not a different machine type or an expansion enclosure.
   The following diagram shows the rear of the control enclosure:
   - 1 Node canister 1 and 2
   - 2 Power supply unit 1 and 2
   A control enclosure has two node canisters side by side and two power supplies underneath. The canisters in the control enclosure can be distinguished from the canisters in an expansion enclosure by the extra Ethernet ports, USB ports, and the battery LEDs. If this is the correct enclosure, proceed to step 2.

   If this is not the correct control enclosure, determine where the correct control enclosure is installed. Click Cancel and continue with the system initialization wizard on the correct control enclosure.

2. Ensure that the node canister is powered on by locating the power LED indicators ( 1 ) on the node canister that you are initializing.
   The green power LED () should be permanently on (not blinking or off). If the green power LED is on, continue to the Step 3.

   If the power LED on the node canister is blinking, the canister is still powering on. However, if the power LED is blinking for five minutes after you applied power to the enclosure, there is a problem with the canister. See Resolving problems with a node canister for information.

   If the power LED is off, check the power indicators ( 1 ) on the power supply units.

   Ensure that the dc power LED () is on for at least one power supply unit. If the dc power LED () is lit, continue to the next step. If the dc power LED and the ac power LED () are not lit and the fault LED () is not lit, trace the power cables back the power source to ensure they are fully inserted into the power supplies and the rack power distribution power units. Ensure that all rack power distribution units are on and receiving power, then check the dc power LED () again.

   If the fault LED is lit on both power supply units or have their ac power LED on but not their dc power LED on, you need to replace the power supply units before you initialize the system on this enclosure. Contact your hardware service representative for new power supply units.

3. On the node canister, check that the system status LED () has not started to blink. If it is blinking, close the help and return to the initialization wizard to continue with system initialization. If the system status LED is on permanently, proceed to the next step.

   If the system status LED is not lit, then the system has not completed the first stage of initialization. The initialization can take up to ten minutes from when power is applied to the system. Wait for the status LED to begin blinking or for the ten minutes to elapse before taking any further action. If the system status LED begins to blink, return to the wizard to continue with system initialization. If power has been on for at least ten minutes and the system status LED is still off, there is a problem with the canister. If the system status does not blink, see Resolving problems with a node canister for information.

4. On the node canister, check the system status LED (). If the system status LED is not permanently on at this point, return to the first step in this process. When the system status LED is permanently on, it indicates that the system is initialized. If you are following these instructions to re-initialize a system that you have already used, see Resolving a problem topics in the Troubleshooting section of the Information Center to determine the status of the system and how to fully reset the system.

   To work with the initialized system, open a supported Web browser and enter the IP address that you specified during the initialization wizard. Log on to the system and continue with system configuration by completing the system setup wizard.

   Note: You only have to initialize one of the canisters in the enclosure, the other canister initializes automatically.