Basic troubleshooting, Initial user contact, External visual inspection – Dell PowerVault 775N (Rackmount NAS Appliance) User Manual
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Basic Troubleshooting
Dell™ PowerVault™ 775N Systems Service Manual
Running the System Diagnostics
The basic troubleshooting procedures can help you diagnose a system problem. These procedures can often reveal the source
of a problem or indicate the correct starting point for servicing the system. See your Installation and Troubleshooting Guide
for more detailed instructions for troubleshooting your system.
A brief explanation of how to load and start the system diagnostics can be found in "
Running the System Diagnostics
Perform the following procedures in the order presented.
NOTE:
While your NAS system can be run headless (without a keyboard. mouse, and monitor), some of the following
diagnostic procedures will require that you have a keyboard, mouse, and monitor connected to your NAS system.
Initial User Contact
When you first contact a user who has a problem, ask the user to describe the problem and the conditions under which it
occurs. After the user describes the problem, perform the following steps:
1. Ask the user to back up any data on the hard drive if the system's condition permits. See the documentation provided
with the operating system or applications software for information about backing up data.
2. Ask the user to try to duplicate the problem by repeating the operations he or she was performing at the time the
problem occurred.
Can the user duplicate the problem?
Yes. Proceed to step 3.
No. Proceed to the next section, "
."
3. Observe the user to determine if he or she is making an error, such as typing an incorrect key combination or entering
a command incorrectly.
Is the problem a result of user error?
Yes. Instruct the user in the proper procedure or direct the user to the appropriate user documentation for the correct
procedure.
No. Proceed to "
External Visual Inspection
Improperly set switches and controls and loose or improperly connected cables are the most likely source of problems for the
system, monitor, or other peripherals (such as a keyboard, mouse, or other external equipment). A quick check of all the
switches, controls, and cable connections can easily solve these problems.
The external visual inspection consists of a quick inspection of the exterior of the system, the monitor, (if attached), the
keyboard (if attached), any peripherals, and cables. While performing the visual inspection, make any necessary corrections.