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.

Expansion canister ports
  •  1  Link LED(x2–one per port)
  •  2  Fault LED (x2–one per port)
  •  3  Expansion canister power LED
  •  4  Expansion canister status LED
  •  5  Expansion canister fault LED

Table 1 summarizes the values of the LEDs on the SAS ports of a Storwize V3700 expansion canister

Table 1. SAS port LED status
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:
  • Only 1, 2, or 3 lanes (phys) are connected, but not all 4.
  • Not all 4 lanes are at the same speed.
  • Not all lanes are connected to the same remote port.

Table 2 summarizes the possible LED status values on a Storwize V3700 expansion canister.

Table 2. Expansion canister LED status
Name Callout Symbol Color State Meaning
Power  3 
This icon shows the power on LED on the enclosure end cap.
Green OFF No power is available.
ON Power is available.
Status  4 
status icon
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 
fault icon
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.