Troubleshooting: Your Array 241
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Troubleshooting: Your Array
Safety First—For you and Your Array
  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.
Troubleshooting Storage Array Startup Failure
If your system halts during startup, check if:
• The array emits a series of beeps. 
• The array fault LEDs are lit. See "RAID Controller Modules" on page 29.
• There is a constant scraping or grinding sound when you access the hard 
drive. See "Getting Help" on page 253.
Troubleshooting Loss of Communication
For information about troubleshooting loss of communication, see 
"Troubleshooting Array and Expansion Enclosure Connections" on page 247.
Troubleshooting External Connections
• Verify that the cables are connected to the correct ports before 
troubleshooting any external devices. For the location of the back-panel 
connectors on your array, see Figure 3-1.
• Ensure that all the cables are securely attached to the external connectors 
on your array.
• For information on cabling, see the 
Dell™ PowerVault™ MD3200 
Deployment Guide
.
book.book  Page 241  Monday, June 21, 2010  11:00 AM