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294 Troubleshooting: Your Array
Troubleshooting Expansion 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 expansion enclosure array to prevent loss of data.
• If the EMM status LED is solid or blinking amber (2 or 4 times per sequence):
a
Turn off the server.
b
Remove the EMM and verify that the pins on backplane and EMM are
not bent. See Removing an EMM in the MD1200 and MD1220
Storage Enclosures
Hardware Owner's Manual
.
c
Reseat the EMM module and wait for 30 seconds. See Removing an
EMM in the MD1200 and MD1220 Storage Enclosures
Hardware
Owner's Manual
.
d
Turn on the server.
e
Check the EMM status LED.
f
If the LED does not turn Green, replace the EMM.
If the problem is not resolved, step c.
• 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 "Management:
Firmware Downloads" on page 247.
• If the link status LEDs are not green:
a
Turn off the server.
b
Reseat the cables on the expansion array and the server.
c
Turn on the expansion arrays and then the storage array and wait until
the system is fully booted.
book.book Page 294 Wednesday, June 8, 2011 5:01 PM