Troubleshooting Array Cooling Problems; Troubleshooting Control Modules - Dell EqualLogic PS4100 Hardware Maintenance Manual

PS4100 Hardware Maintenance Guide
– Replace the power cable.
If the problem is not resolved, or if the power supply's fault indicator is lit, see
Support and Customer Service on page
Power supply and cooling modules are hot-swappable. The array can operate on a single power supply;
however both modules must be installed to ensure proper cooling. A single power supply and cooling
module can be removed from a powered-on array for a maximum of five minutes. Beyond that time, the
array may automatically shut down to prevent damage.
2. Reseat the power supply by removing and reinstalling it. See
Module on page 30.
Note: After installing a power supply, allow several seconds for the array to recognize the power supply
and to determine if it is working properly.
If the problem is not resolved, see

Troubleshooting Array Cooling Problems

Check for and correct any of the following situations:
• Empty drive bays (no drive or drive blank).
• Ambient temperature is too high. See the Technical Specifications for the array in the Installation and
Setup Guide.
• External airflow is obstructed.
• The power supply and cooling module is removed or has failed. See
Cooling Modules on page
If the problem is not resolved, see

Troubleshooting Control Modules

1. Remove the control module and verify that the pins on the backplane and control module are not bent.
See Replacing a Control Module on page
2. Reinstall the control module and wait for 30 seconds. See
3. Check the control module status LEDs. See
information.
4. If control module status LED is blinking amber (5 times per sequence), update the firmware to the latest
supported firmware on both the control module. For more information about downloading the latest
firmware, see the PS Series Release Notes and the document Updating PS Series Storage Array
Firmware, available on the customer support site.
5. If the link status LEDs are not green:
a. Reseat the cables on the control modules and the switches.
35.
Obtaining Technical Support and Customer Service on page
36.
Obtaining Technical Support and Customer Service on page
22.
Interpreting Control Module LEDs on page 18
Troubleshooting Your Array
Obtaining Technical
Removing a Power Supply and Cooling
Troubleshooting Power Supply and
Replacing a Control Module on page
35.
35.
22.
for more
37