IBM Storwize V7000, Introduction And Implementation Manual

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IBM Flex System V7000 Storage Node Introduction and Implementation Guide
Table 13-1 defines the various LED states for the node canisters in IBM Flex System V7000
Storage Node.
Table 13-1 Definition of a node canister LED states
IBM Flex System V7000 Storage Node has indicators or light-emitting diodes (LEDs) that
provide the status of the various components to help you determine the system state as well
as appropriate actions to take to resolve the issues. See Figure 13-2 for a description of the
various LED states that you might observe.
Figure 13-2 Node canister LED layout
State Description
Off The LED is continuously not lit or off.
Blinking slowly The LED turns on and off at a frequency of 1 Hz: It is on for 500 ms, then off for
500 ms, then repeats.
Blinking The LED turns on and off at a frequency of 2 Hz: It is on for 250 ms, then off for
250 ms, then repeats.
Blinking fast The LED turns on and off at a frequency of 4 Hz: It is on for 125 ms, then off for
125 ms, then repeats.
On The LED is continuously lit or on.
Flashing The LED is lit to indicate some activity, then turns off. The rate and duration that
the LED is lit depends on the rate and duration of the activity.
12 13
8
9 10
11
3 4 5 6 7
2
1