DS8000 Service Documentation Version 7.5

I/O enclosure LED indicators (Models 941, 94E)

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. List of I/O enclosure assemblies with LEDs
Assembly Reference
I/O enclosure (front) Figure 1
I/O enclosure (rear) with Fibre Channel host card, 4 Gb/s Figure 2
Fibre channel host card, 8 Gb/s (4-port only) Figure 3
Figure 1. LEDs on the I/O enclosure (front)
LEDs on the I/O enclosure (front)
Table 2. Interpreting the LEDs on the I/O enclosure (front)
Index LED Function Location Color LED Off LED On LED Flash
1 Input power for I/O enclosure power supply E1 green no input input good n/a
2 Output power for I/O enclosure power supply E1 green standby off output on standby
3 Identify for I/O enclosure power supply E1 amber normal n/a fast = identify, slow = com fail
4 Input power for I/O enclosure power supply E2 green no input input good n/a
5 Output power for I/O enclosure power supply E2 green standby off output on standby
6 Identify for I/O enclosure power supply E2 amber normal n/a fast = identify, slow = com fail
7 Identify for I/O enclosure fan A1 amber normal n/a identify
8 Identify for I/O enclosure fan A2 amber normal n/a identify
9 Identify for I/O enclosure P1 blue normal identify n/a
10 Power for I/O enclosure P1 green power off power on standby

I/O enclosure rear

Figure 2. LEDs on the I/O enclosure (rear), with Fibre channel host card, 4 Gb/s
LEDs on the I/O enclosure (rear)
Table 3. Interpreting the LEDs on the I/O enclosure (rear)
Index LED Function Location Color LED Off LED On LED Flash
1 Power for I/O enclosure PCIe switch card P1-C7 green power off power on power standby
2 Identify for I/O enclosure PCIe switch card P1-C7 amber normal fault identify
3 Power for I/O enclosure P1 green power off power on n/a
4 Identify for I/O enclosure P1 blue normal n/a identify
5 Power for I/O enclosure PCI card P1-Cx green power off power on standby (card regulators off)
6 Identify for I/O enclosure PCI slot P1-Cx amber normal n/a identify
7 Activity for I/O enclosure device adapter card P1-Cx-T3/4 green Note 1 Note 2 Note 3
8 Identify for I/O enclosure device adapter card P1-Cx-T3/4 amber normal n/a identify
9 Activity for I/O enclosure device adapter card P1-Cx-T1/2 green Note 1 Note 2 Note 3
10 Identify for I/O enclosure device adapter card P1-Cx-T1/2 amber normal n/a identify
11 Fibre channel port, 4Gb/s, LEDs (see Table 5 and Table 6)          
Notes:
  1. LED off indicates port above and port below LED are both not "Ready".
  2. LED on solid indicates port above and port below LED are both "Ready" (operational).
  3. If LED is blinking 0.75 sec ON and 0.25 sec OFF, then only the port above the LED is "Ready".
    If LED is blinking 0.25 sec ON and 0.75 sec OFF, then only the port below the LED is failing.
Figure 3. LEDs on Fibre channel host card, 8 Gb/s (4-port only)
LEDs on Fibre channel host card, 8 Gb/s (4-port only)
Table 4. Interpreting the LEDs on the Fibre channel host card 8 Gb/s
Index LED Function Location Color LED Off LED On LED Flash
4 Power for I/O enclosure PCI slot P1-Cx green power off power on standby (card regulators off)
5 Identify for I/O enclosure PCI slot P1-Cx amber normal n/a identify
8, 9 Fibre channel host card port LEDs (see Table 5 and Table 6) P1-Cx-Ty
(x=1,2,4,5)		        

Fibre channel host card (4 Gb/s or 8 Gb/s) port LEDs

Table 5 and Table 6 provide detailed information on Fibre Channel host card port LEDs.
Note: Do not use visual symptoms to replace the host adapter cards. Only replace them when they are:
  • Listed in a serviceable event FRU list, OR
  • Isolated in an isolation procedure MAP
Table 5. Fibre channel host card (4 and 8 Gb/s) port LEDs (normal conditions)
Adapter Yellow LED Green LED State
8-Gb/s adapters (4-port only, Figure 3) Off Slow blink Normal - link is down or not started
2 blinks On 2-Gb/s link rate - normal, link is up
3 blinks On 4-Gb/s link rate - normal, link is up
4 blinks On 8-Gb/s link rate - normal, link is up
4-Gb/s adapters (Figure 2) Off 1 blink/second Normal: link is down or not started
1 blink On 1-Gb/s link rate - link is active
2 blinks On 2-Gb/s link rate - link is active
3 blinks On 4-Gb/s link rate - link is active
Table 6. Fibre channel host card (4 Gb/s or 8Gb/s) port LEDs (Power up, failure, download, or test conditions)
Adapter Yellow LED Green LED State
All Off Off Wake-up failure (board is not responding)
On Failure when functioning
On Off POST failure (board is not responding)
On Failure when functioning
1 blink/second Off Wake-up failure monitor
1 blink/second Offline (download in progress)
4 blinks/second Off POST failure
1 blink/second Restricted offline mode (a restart is pending)
Irregular blinks Off POST process in progress
1 blink/second Restricted offline mode (test is ongoing)