Table 6. System LED patterns during normal operation
LED name LED color Status of Hardware Recommended action
Power Status No light Switch is off or power supply has
failed.
Verify that the system is on and has
completed booting. If the system is
on, the unit is faulty. Contact IBM
Support.
Steady green Switch is on and power supply is
functioning properly
No action required.
System Status No light Switch is off , boot is not complete,
or boot failed.
Verify that the system is on and has
completed booting.
Steady green Switch is operational No action required.
Slow-flashing
green
(on 1 second, off
1 second)
One or both of the following are true:
v One or more environmental
ranges are exceeded.
v Error log contains one or more
port diagnostic error messages.
Complete the following steps:
1. Check environmental conditions,
error log, Port Status LEDs, SFPs,
cables, and loopback plugs.
2. Correct error condition
3. Clear error log.
4. Rerun diagnostics to verify fix.
5. Contact IBM Support if unable to
resolve.
Amber Switch is faulty, or is initializing. Wait a few moments to verify that the
switch is not initializing. Contact IBM
Support, if required.
Chapter 3. Operating the SAN16B-2 23
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