Procedure: Understanding the Lenovo Storage V7000 Gen1 system status using the LEDs

Use this procedure to determine the Lenovo Storage V7000 Gen1 system status using the LED indicators on the system.

1. Use the state of the ac power failure, power supply OK, fan failure, and dc power failure LEDs on each power supply unit in the enclosure to determine if there is power to the system, or if there are power problems. Figure 1 shows the LEDs on the power supply unit for the 2076-112 or 2076-124. The LEDs on the power supply units for the 2076-312 and 2076-324 are similar, but they are not shown here.
   Figure 1. LEDs on the power supply units of the control enclosure
   
   

   Table 1. Power-supply unit LEDs

   Power® supply OK	AC failure	Fan failure	DC failure	Status	Action
   On	On	On	On	Communication failure between the power supply unit and the enclosure chassis	Replace the power supply unit. If failure is still present, replace the enclosure chassis.
   Off	Off	Off	Off	No ac power to the enclosure.	Turn on power.
   Off	Off	Off	On	The ac power is on but power supply unit is not seated correctly in the enclosure.	Seat the power supply unit correctly in the enclosure.
   Off	On	Off	On	No ac power to this power supply	Check that the switch on the power supply unit is on. Check that the ac power is on. Reseat and replace the power cable.
   On	Off	Off	Off	Power supply is on and operational.	No actions
   Off	Off	On	Off	Fan failure	Replace the power supply unit.
   Off	On	On	On	Communication failure and power supply problem	Replace the power supply unit. If replacing the power supply unit does not fix the problem, replace the enclosure chassis.
   Flashing	X	X	X	No canister is operational.	Both canisters are either off or not seated correctly. Turn off the switch on both power supply units and then turn on both switches. If this action does not resolve the problem, remove both canisters slightly and then push the canisters back in.
   Off	Flashing	Flashing	Flashing	Firmware is downloading.	No actions. Do not remove ac power. Note: In this case, if there is a battery in a power supply unit, its LEDs also flash.

2. At least one power supply in the enclosure must indicate Power supply OK or Power supply firmware downloading for the node canisters to operate. For this situation, review the three canister status LEDs on each of the node canisters. Start with the power LED.

   Table 2. Power LEDs

   PowerLED status	Description
   Off	There is no power to the canister. Try reseating the canister. If the state persists, follow the hardware replacement procedures for the parts in the following order: node canister, enclosure chassis.
   Slow flashing (1 Hz)	Power is available, but the canister is in standby mode. Try to start the node canister by reseating it.
   Fast flashing (2 Hz)	The canister is running its power-on self-test (POST). Wait for the test to complete. If the canister remains in this state for more than 10 minutes, try reseating the canister. If the state persists, follow the hardware replacement procedure for the node canister.

   Figure 2 shows the LEDs on the node canister.

   Figure 2. LEDs on the node canisters
   
   
3. If the power LED is on, consider the states of the clustered-system status and fault LEDs.

   Table 3. System status and fault LEDs

   System status LED	Fault LED	Status	Action
   Off	Off	Code is not active.	Follow procedures for reviewing power LEDs. If the power LEDs show green, reseat the node canister. If the LED status does not change, see the topic that contains information about replacing a node canister.
   Off	On	Code is not active. The BIOS or the service processor has detected a hardware fault.	Follow the hardware replacement procedures for the node canister.
   On	Off	Code is active. Node state is active.	No action. The node canister is part of a system and can be managed by the management GUI.
   On	On	Code is active and is in starting state. However, it does not have enough resources to form the system.	The node canister cannot become active in a system. There are no detected problems on the node canister itself. However, it cannot connect to enough resources to safely form a system. Follow the procedure to fix the node errors.
   Flashing	Off	Code is active. Node state is candidate.	Create a system on the node canister, or add the node canister to the system. If the other node canister in the enclosure is in active state, it automatically adds this node canister into the system. A node canister in this state can be managed using the service assistant.
   Flashing	On	Code is active. Node state is service.	The node canister cannot become active in a system. Several problems can exist: hardware problem, a problem with the environment or its location, or problems with the code or data on the canister. Follow the procedure to fix the node errors.
   Any	Flashing	The node canister is being identified so that you can locate it.	The fix procedures in the management GUI might have identified the component because it requires servicing. Continue to follow the fix procedures. The service assistant has a function to identify node canisters. If the identification LED is on in error, use the service assistant node actions to turn off the LED.

To review the status of the control enclosure batteries, see Table 4.

Table 4. Control enclosure battery LEDs

Battery Good	Battery Fault	Description	Action
On	Off	Battery is good and fully charged.	None
Flashing	off	Battery is good but not fully charged. The battery is either charging or a maintenance discharge is in process.	None
Off	On	Nonrecoverable battery fault.	Replace the battery. If replacing the battery does not fix the issue, replace the power supply unit.
Off	Flashing	Recoverable battery fault.	None
Flashing	Flashing	The battery cannot be used because the firmware for the power supply unit is being downloaded.	None