Dell MD1400 Owner's Manual

Also see for MD1420: Hardware owner's manual

Dell MD1400 Owner's Manual Manual pdf 34 page image

Troubleshooting Enclosure Management ModulesCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.CAUTION: It is recommended that you turn off the host server before turning off the enclosure toprevent loss of data.• If the EMM status LED is solid or blinking amber (2 or 4 times per sequence):– Turn off the server.– Remove the EMM and verify that the pins on backplane and EMM are not bent. See Removing anEMM.– Reinstall the EMM and wait for 30 seconds. See Installing an EMM.– Turn on the server.– Check the EMM status LED.• If EMM status LED is blinking amber (5 times per sequence), update the firmware to the latestsupported firmware on both the EMMs. For more information about downloading the latest firmware,see Dell Update Package at dell.com/support.• If the link status LEDs are not green:– Turn off the server.– Reseat the cables on the storage enclosure and the server.– Restart the storage enclosure and wait until enclosure is fully booted.– Turn on the server.– Check the link status LED. If the link status LED is not green, proceed to the next step.If the problem is not resolved, see Getting Help.Troubleshooting hard disk drivesCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.1. Remove the hard disk drive from the enclosure. See Removing a hard disk drive.NOTE: You must ensure that you check the hard disk drive indicators before removing thefaulty hard disk drive from the enclosure.2. Check the hard disk drives and the backplane to ensure that the connectors are not damaged.3. Reinstall the hard disk drive.4. Restart the host server.If the problem is not resolved, go to task 5.5. Verify that the EMM port link status LED and the EMM status LED are solid green for each port that isconnected to a cable. If the LEDs are not solid green, see Enclosure Management Module.34

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