DataDirect Networks EF4024 FC Setup Manual
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Contents
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Troubleshooting96-30065-001 Rev. A0 DataDirect Networks EF4024 FC RAID System Setup Guide | 425.7 Resolving Voltage and Temperature Warnings1. Check that all of the fans are working by making sure the Voltage/Fan Fault/ServiceRequired LED on each power supply module is off, or by using RAIDar to checkenclosure health status. In the Configuration View panel, right-click the enclosure andclick View > Overview to view the health status of the enclosure and its components.The Enclosure Overview page enables you to see information about each enclosureand its physical components in front, rear, and tabular views—using graphical ortabular presentation—allowing you to view the health status of the enclosure and itscomponents.See Section 5.2.2 on page 32 for a description of health status icons and alternativesfor monitoring enclosure health.2. Make sure that all modules are fully seated in their slots and that their latches arelocked.3. Make sure that no slots are left open for more than two minutes.If you need to replace a module, leave the old module in place until you have thereplacement or use a blank module to fill the slot. Leaving a slot open negativelyaffects the airflow and can cause the enclosure to overheat.4. Try replacing each power supply one at a time.5. Replace the controller modules one at a time.5.7.1 Sensor LocationsThe storage system monitors conditions at different points within each enclosure to alertyou to problems. Power, cooling fan, temperature, and voltage sensors are located at keypoints in the enclosure. In each controller module and expansion module, the enclosuremanagement processor (EMP) monitors the status of these sensors to perform SCSIenclosure services (SES) functions.The following sections describe each element and its sensors.5.7.2 Power Supply SensorsEach enclosure has two fully redundant power supplies with load-sharing capabilities. Thepower supply sensors described in the following table monitor the voltage, current,temperature, and fans in each power supply. If the power supply sensors report a voltage thatis under or over the threshold, check the input voltage.5.7.3 Cooling Fan SensorsEach power supply includes two fans. The normal range for fan speed is 4,000 to 6,000 RPM.When a fan speed drops below 4,000 RPM, the EMP considers it a failure and posts an alarmin the storage system event log. The following table lists the description, location, and alarmDescription Event/Fault ID LED conditionPower supply 1 Voltage, current, temperature, or fan faultPower supply 2 Voltage, current, temperature, or fan fault |
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