Dell PowerVault MD3820f - Manual (Page 37)

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Troubleshooting Your System
Safety First—For You and Your System
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.
NOTE: To replace a RAID controller, always hot plug the replacement controller when the array has
been powered on.
All new hard drives should be hot plugged to the array.
Do not use drives or RAID controllers from other arrays.
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.
• There is a constant scraping or grinding sound when you access the physical disk.
For assistance, contact Dell Support.
Troubleshooting Loss of Communication
For information about troubleshooting loss of communication, see Troubleshooting Array and Expansion
Enclosure Connections .
Troubleshooting an SFP Transceiver
NOTE: This section is applicable only for the Dell PowerVault MD3800f and MD3820f storage
enclosures.
WARNING: Data processing environments can contain equipment transmitting on system links
with Laser modules that operate at greater than Class 1 power levels. Never look into the end of
an optical fibre cable or open receptacle.
CAUTION: When handling static-sensitive devices, take precautions to avoid damaging the
product from static electricity.
NOTE: Before proceeding with this section, see Working With SFP Modules And Fibre Optic Cables
in the Dell PowerVault MD3800f and MD3820f Series Storage Arrays Deployment Guide at
dell.com/powervaultmanuals.
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