Expansion canister indicators
The Storwize® V3700 expansion canister has indicator LEDs for the SAS ports and indicator LEDs for the expansion canister.
Four indicator LEDs provide status information for the two SAS ports. Three indicator LEDs provide status information for the expansion canister as a whole.

Table 1 summarizes the values of the LEDs on the SAS ports of a Storwize V3700 expansion canister
Name | Callout | Symbol | Color | State | Meaning |
---|---|---|---|---|---|
Link | 1 | None | Green | OFF | No link connection on any phy. |
ON | There is a connection on at least one phy. | ||||
Fault | 2 | None | Amber | OFF | No fault. All four phys have a link connection. |
ON | This can indicate a number of different error conditions: |
Table 2 summarizes the possible LED status values on a Storwize V3700 expansion canister.
Name | Callout | Symbol | Color | State | Meaning |
---|---|---|---|---|---|
Power | 3 | ![]() |
Green | OFF | No power is available. |
ON | Power is available. | ||||
Status | 4 | ![]() |
Green | OFF | The system code has not started, the system is off, in standby, or self test. |
BLINK | The canister is unable to read data from the midplane. | ||||
ON | The canister machine code is active. | ||||
Canister fault | 5 | ![]() |
Amber | OFF | No faults requiring part replacement have been detected on the expansion canister. |
BLINK | The canister is being identified. There might or might not be a fault condition. | ||||
ON | Either there is a fault which requires part replacement or the canister is still starting. |