Dell PowerEdge R905 - Manual (Page 165)

Troubleshooting Your System
165
11 Reconnect the system to its electrical outlet, and turn on the system and
attached peripherals. If the problem persists, proceed as follows:
•
If you have a SAS controller, see "Getting Help" on page 181.
• If you have a RAID controller, replace the RAID battery. See
"Installing the SAS RAID Controller Card Battery" on page 115. If
replacing the battery does not solve the problem, see "Getting Help"
on page 181.
Troubleshooting an External SAS Tape Drive
Problem
• Defective tape drive
• Defective tape cartridge
• Missing or corrupted tape-backup software or tape drive device driver
• Defective SAS controller
Action
1 Remove the tape cartridge you were using when the problem occurred, and
replace it with a tape cartridge that you know works.
2 Ensure that the device drivers for the tape drive are installed and are
configured correctly.
3 Run the appropriate online diagnostics tests. See "Using Dell PowerEdge
Diagnostics" on page 169.
4 Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
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.
5 Open the system. See "Opening and Closing the System" on page 67.
6 Ensure that the controller card is firmly seated in its connector on the
system board.