Troubleshooting Enclosure Management Modules; Troubleshooting Hard Disk Drives - Dell MD1400 Owner's Manual

Troubleshooting Enclosure Management Modules

CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
CAUTION: It is recommended that you turn off the host server before turning off the enclosure to
prevent 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
EMM.
– Reinstall the EMM and wait for 30 seconds. See
– 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 latest
supported 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

Troubleshooting hard disk drives

CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
1. Remove the hard disk drive from the enclosure. See
NOTE: You must ensure that you check the hard disk drive indicators before removing the
faulty 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 is
connected to a cable. If the LEDs are not solid green, see
34
Installing an
Getting Help.
Removing a hard disk
EMM.
drive.
Enclosure Management
Removing an
Module.