Dell PowerVault 775N Installation And Troubleshooting Manual page 73

Replacing a RAID Controller Card
Follow these general guidelines when replacing a RAID controller card. For specific instructions, see the documentation
supplied with the RAID controller card.
CAUTION: Before you perform this procedure, you must turn off the system and disconnect it from its
power source. For more information, see
Your System."
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System
Information document.
1. Unpack the RAID controller card, and prepare it for installation.
For instructions, see the documentation accompanying the card.
2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
3. Remove the cover (see
4. Install the RAID controller card (see
5. Connect SCSI interface cables supplied with the card to the SCSIA and/or SCSIB connectors on the SCSI backplane
board.
NOTE: Cables can be connected from the RAID controller card to SCSIA and/or SCSIB backplane board
connector(s). A backplane board connector that is not attached to the RAID controller card will use the onboard
SCSI controller or integrated RAID controller.
To identify the connector on the RAID controller card, see documentation for the card. See
SCSI controller connectors on the SCSI backplane board.
Route the SCSI cables over the SCSI backplane board to the expansion-card cage.
6. Connect the external SCSI devices to the card's external connector on the system's back panel.
If you are attaching multiple external SCSI devices, daisy-chain the devices to each other using the cables shipped with
each device.
7. Replace the cover (see
8. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
9. Install any required SCSI device drivers (see "Installing and Configuring SCSI Drivers" in the User's Guide).
10. Test the SCSI devices.
Test a SCSI hard drive by running the SCSI Controllers test in the system diagnostics.
Installing the SCSI Cable Strain-Relief Bracket
1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
2. Ensure that the system is pushed back as far as possible in the rack.
NOTE: To use the strain-relief bracket, only two SCSI cables can be connected to the system at a time. The cables
cannot be stacked, one above the other; they must be either side-by-side or placed diagonally to each other.
"Safety First—For You and Your System
"Removing the Cover" in "Troubleshooting Your System").
"Installing an Expansion
"Replacing the Cover" in "Troubleshooting Your System").
Card" in "Installing System Options").
" in "Troubleshooting
Figure A-5 to locate the