IBM Storwize V7000 Troubleshooting And Maintenance Manual page 29

Note: The reference to the left and right locations applies to canister 1, which is the upper canister. The
port locations are inverted for canister 2, which is the lower canister.
Table 10. Node canister LEDs
Name Description
Cluster Indicates the status of the node.
status
v The on status indicates that the node is active, that is, it is an active
member of a cluster. When the node is active, do not remove it.
If the cluster status LED is on and the fault LED is off, the node
canister is an active member of a cluster.
If the cluster status LED is on and the fault LED is on, there is a
problem establishing a cluster.
v The off state indicates there is no power to the canister or the
canister is in standby mode. These conditions can cause the off
state:
– The main processor is off and only the service processor is
active.
– A power-on self-test (POST) is running on the canister.
– The operating system is loading.
v The flashing status indicates that the node is in candidate state or
service state. It is not able to perform I/O in a cluster. When the
node is in either of these states, it can be removed. Do not remove
the canister unless directed by a service procedure.
Fault Indicates if a fault is present and identifies which canister.
v The on status indicates that the node is in service state or an error
exists that might be stopping the software from starting. Do not
assume that this status indicates a hardware error. Further
investigation is required before replacing the node canister.
v The off status indicates that the node is a candidate or is active.
This status does not mean that there is not a hardware error on the
node. Any error that was detected is not severe enough to stop the
node from participating in a cluster.
v The flashing status indicates that the canister is being identified.
This status might or might not be a fault.
Power Indicates if power is available and the boot status of the canister.
v The on status indicates that the canister is powered on and that the
main processor or processors are running.
v The off status indicates that no power is available.
v The slow flashing (1 Hz) status indicates that power is available
and that the canister is in standby mode. The main processor or
processors are off and only the service processor is active.
v The fast flashing (2 Hz) indicates that the canister is running the
power-on self-test (POST).
Fibre Channel port numbers and worldwide port names
Fibre Channel ports are identified by their physical port number and by a worldwide port name
(WWPN).
The physical port numbers identify fibre-channel cards and cable connections when you perform service
tasks. The WWPNs are used for tasks such as fibre-channel switch configuration and to uniquely identify
the devices on the SAN.
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Chapter 1. Storwize V7000 hardware components
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