Installation guide

3-8
Installation Guide
Disk Rack
Problem Possible Cause Solution
The disk rack does not
power up (the power on and
power status LEDs on the
The disk rack power switch is not set
to ON.
Press the power button on the front of the disk
rack.
power status LEDs on the
disk rack are not alight).
The disk rack power cable is not
connected or is incorrectly
connected to the PDU.
Check the disk rack power cable connection.
Connect or reconnect the power cable to the
PDU.
The PDU power cable is not
connected or is incorrectly
connected to the AC outlet.
Check the PDU power cable connection.
Connect or reconnect the power cable to the
AC outlet.
The PDU circuit breaker is not ON. Check the PDU circuit breaker and turn ON if
required.
The AC outlet is faulty. Try another AC outlet.
The AC source is missing.
Call the site electrician to check the AC
source.
The disk rack is not
recognized by the server.
The interface cable(s) is (are) not
connected or is (are) incorrectly
connected to the HBA(s) in the CSS
module.
Check the disk rack interface cable
connection. Connect or reconnect the
interface cable(s) to the HBA(s) in the CSS
module.
An internal cable is faulty. Check internal cables for faults. Replace the
faulty cable.
The disk rack is not
recognized by the server.
Disk drives have not finished
spinning up.
Wait a while. The drive status LEDs will turn
green once they have finished spinning up.
Disk drives have not been correctly
installed.
Check that all disk drive cariers are correctly
installed.
The disk rack cannot be
accessed from the PAP unit.
The interface cable is not connected
or is incorrectly connected to the
COM port on the PAP unit.
Check the interface cable connection.
Connect or reconnect the interface cable to
the COM port on the PAP unit. Refer to the
manufacturer’s documentation for further
information.
An internal cable is faulty. Check internal cables for faults. Replace the
faulty cable.