IBM System Storage DS5020 Installation, User's, And Maintenance Manual page 188

Table 22. Symptom-to-FRU index
Problem
indicator
Amber LED is lit
158
IBM System Storage DS5020 Storage Subsystem: Installation, User's, and Maintenance Guide
Component Possible cause
Drive CRU Drive failure
(Drive Fault
LED)
Note: The
green Drive
Drive uncertified
Activity LED
might also be
lit.
Controller firmware
is not at the
minimum version to
support the drive
RAID controller RAID controller
(Fault LED) failure
Note:
Controller
Service Action
Allowed LED
Controller was
will also be lit.
placed offline by a
user or the other
controller.
Unsupported
controller type. For
example, a DS4200
Express FRU is
inserted into a
DS5020 chassis.
Possible solutions
Replace the failed drive.
Note: The amber LED on the
drive is also lit if the drive slot
has a blank drive tray inserted.
Verify the drive option and FRU
part number to verify that it is
supported by the DS5020 storage
subsystem. (For FRU part
numbers, see Table 23 on page
166.)
Upgrade the controller firmware
to the latest version from the IBM
Support web site.
Replace the RAID controller. See
your controller documentation for
more information. See Chapter 5,
"Replacing components," on page
123 for more information.
Use the menu function in the
DS5020 Subsystem Management
window to place the controller
back online. If the controller
continues going to an offline state
after being placed online, replace
the RAID controller.
Use the Storage Manager Client
Subsystem Management window
and Recovery Guru to verify that
the correct controller FRU is
used. Replace with the correct
DS5020 controller FRU.