I/O enclosure LED indicators (Models A0x, E05)

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This section contains FRUs that have LED indicators. Each listed assembly is shown with a description of its LEDs. Do not use LEDs as a starting point for diagnosing a problem.

I/O enclosure FRUs with LEDs

Table 1. I/O enclosure locations (front)
Part	Reference
I/O enclosure fan	Figure 1

Table 2. I/O enclosure locations (rear)
Part	Reference
I/O enclosure power supply	Figure 2
I/O enclosure PCIe switch card	Figure 3
I/O enclosure device adapter card, SAS (flash)	Figure 4
I/O enclosure Fibre Channel host card	Figure 5
I/O enclosure zHyperLink card	Figure 6

I/O enclosure front

Figure 1. LEDs on the I/O enclosure (front)

Table 3. Interpreting the LEDs on the I/O enclosure (front)
Index	LED Function	Location	Color	LED Off	LED On	LED Flash
1	Power for I/O enclosure fan	A1, A2, A3, A4	Green	Power off	Power on	N/A
2	Identify for I/O enclosure fan	A1, A2, A3, A4	Amber	Normal	N/A	Identify
4	Identify for I/O enclosure	P1	Blue	Normal	Identify	N/A
5	Power for I/O enclosure	P1	Green	Power off	Power on	Standby

I/O enclosure rear

Figure 2. I/O enclosure power supply LEDs (rear)

Table 4. Interpreting the LEDs on the I/O enclosure power supplies (rear)
Index	LED Function	Location	Color	LED Off	LED On	LED Flash
1, 4	Identify for I/O enclosure power supply	Ex, x=1, 2	Amber	Normal	N/A	Identify
2, 5	Output power from I/O enclosure power supply	Ex, x=1, 2	Green	Output power off	Output power on	N/A
3, 6	Input power to I/O enclosure power supply	Ex, x=1, 2	Green	Input power off	Input power on	N/A

Figure 3. I/O enclosure LEDs (rear of the PCIe switch card)

Table 5. Interpreting the LEDs on the I/O enclosure PCIe switch card (rear)
Index	LED Function	Location	Color	LED Off	LED On	LED Flash
1	Identify for I/O enclosure	P1	Blue	Normal	Identify	N/A
2	Power for I/O enclosure PCIe switch card (to the left of identify LED)	P1-C7	Green	Power off	Power on	Power standby
3	Identify for I/O enclosure PCIe switch card	P1-C7	Amber	Normal	Fault	Identify
4	Port status for I/O enclosure PCIe switch card PCIe port	P1-C7-T1 P1-C7-T2	Green Amber (dual color)	No link	Green: link	Amber: port identify
5	Port status for I/O enclosure PCIe switch card bay-to-bay I2C port	P1-C7-T3	Green Amber (dual color)	No link	Green: link	Amber: port identify

Figure 4. I/O enclosure device adapter LEDs

Table 6. Interpreting the LEDs on the device adapter
Index	LED Function	Location	Color	LED Off	LED On	LED Flash
1	Identify for I/O enclosure device adapter card, NVMe (flash)	P1-Cx x=1, 2	Amber	Normal	N/A	Identify
2	Port status for I/O enclosure device adapter card, NVMe (flash)	P1-Cx-Ty x=1, 2 y=1, 2, 3, 4	Green Amber (dual color)	No link	Green: link	Amber: port identify

Figure 5. I/O enclosure host adapter LEDs

Table 7. Interpreting the LEDs on the host adapter
Index	LED Function	Location	Color	LED Off	LED On	LED Flash
1	Identify for I/O enclosure Fibre Channel host card	P1-Cx x=3, 4, 5, 6	Amber	Normal	N/A	Identify
2, 3	Port status for Fibre Channel host card port LEDs	P1-Cx-Ty x=3, 4, 5, 6 y=0, 1, 2, 3	See Table 5 and Table 6. Notes: LED off indicates port is not ready. LED on solid indicates port is ready (link is operational).

Figure 6. I/O enclosure zHyperLink adapter LEDs

Table 8. Interpreting the LEDs on the zHyperLink adapter
Index	LED Function	Location	Color	LED Off	LED On	LED Flash
1, 4	Port status for I/O enclosure zHyperLink card	P1-C7-Cx-Ty x=1, 2 y=1, 2	Green Amber (dual color)	No link	N/A	Green: link Amber: Identify
2, 3	Identify for I/O enclosure zHyperLink card	P1-C7-Cx x=1, 2	Amber	Normal	N/A	Identify

Fibre Channel host card port LEDs

Table 9, and Table 10 provide detailed information on Fibre Channel host card port LEDs.

Important: Do not replace host adapter cards based on visual symptoms that are displayed in the LEDs. Replace them only when they are:

Listed in a serviceable event FRU list, OR
Isolated in an isolation procedure MAP

Note: In the following tables, LED terms are:

Slow flashes are 1 per second
Fast flashes are 4-5 per second
Flashing is very fast flashing; the LED may look dimly lit

Figure 7. I/O enclosure host adapter LEDs

Table 9. Fibre Channel host card port LEDs (32 Gb/sec adapters, Normal conditions)
Adapter	Left LED [2]	Right LED [3]	State
32 Gb/s adapters	Off	On, green	8 Gb/s FC link rate - no I/O
	Off	Fast flash, green	8 Gb/s FC link rate - active I/O
	On, green	Off	16 Gb/s FC link rate - no I/O
	On, green	On, green	32 Gb/s FC link rate - no I/O
	Fast flash, green	Off	16 Gb/s FC link rate - active I/O
	Fast flash, green	Fast flash, green	32 Gb/s FC link rate - active I/O

Table 10. Fibre Channel host card port LEDs (32 Gb/sec adapters, power-up or test conditions)
Adapter	Left LED [2]	Right LED [3]	State
32 Gb/s adapters	Off	Off	Power off
	On, white	Slow flash, green	POR/ROM Power on or hardware reset
	Slow flash, white	Off	POR/PreConfig Port firmware loaded, port not yet online (example: port topology not set)Port configured, firmware not initialized, topology not set
	Slow flash, green	Slow flash, green	Link down(no light or sync)
	Slow flash, blue	Off	Port identify (port offline beaconing)