Chapter 5. Troubleshooting
The system includes monitoring and control logic so that it can diagnose problems with power, cooling,
PSUs, and drive systems.
Initial start-up problems
When starting the appliance, a number of issues can occur.
Power fault
Ensure that you wired up the enclosure system correctly and that main power is present. Call your
supplier for replacements if any of the following situations occur.
v Cords are missing or damaged.
v Plugs are incorrect.
v Cords are too short.
LEDs
LED colors are used consistently throughout the enclosure and its components to indicate status.
Green Good or positive indication.
Flashing green or amber
Non-critical condition.
Amber
Fault.
Note: When the enclosure is powered on, all LEDs light up for a short period to ensure that they are
working. This condition does not indicate a fault unless the LEDs remain lit after a few seconds.
PSU LEDs
Table 4. PSU LED states
PSU Fail (Amber)
AC Missing
(Amber) Power (Green) Status
Off Off Off No AC power to either PSU.
Figure 27. PSU LEDs
© Copyright IBM Corp. 2016, 2018 31
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