Dell EqualLogic PS4100 Hardware Maintenance Manual

Also see for PS4100: Hardware Overview Configuration guide Setting up Installation and setup guide

Contents

Dell EqualLogic PS4100 Hardware Maintenance Manual Manual pdf 43 page image

PS4100 Hardware Maintenance Guide Troubleshooting Your Array37– Replace the power cable.If the problem is not resolved, or if the power supply’s fault indicator is lit, see Obtaining TechnicalSupport and Customer Service on page 35.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 coolingmodule can be removed from a powered-on array for a maximum of five minutes. Beyond that time, thearray may automatically shut down to prevent damage.2. Reseat the power supply by removing and reinstalling it. See Removing a Power Supply and CoolingModule on page 30.Note: After installing a power supply, allow several seconds for the array to recognize the power supplyand to determine if it is working properly.If the problem is not resolved, see Obtaining Technical Support and Customer Service on page 35.Troubleshooting Array Cooling ProblemsCheck 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 andSetup Guide.• External airflow is obstructed.• The power supply and cooling module is removed or has failed. See Troubleshooting Power Supply andCooling Modules on page 36.If the problem is not resolved, see Obtaining Technical Support and Customer Service on page 35.Troubleshooting Control Modules1. 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 22.2. Reinstall the control module and wait for 30 seconds. See Replacing a Control Module on page 22.3. Check the control module status LEDs. See Interpreting Control Module LEDs on page 18 for moreinformation.4. If control module status LED is blinking amber (5 times per sequence), update the firmware to the latestsupported firmware on both the control module. For more information about downloading the latestfirmware, see the PS Series Release Notes and the document Updating PS Series Storage ArrayFirmware, 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.