IBM DS4800 User, Installation And Maintenance Manual page 185

Table 24. DS4800 Symptom-to-FRU index (continued)
Problem
indicator Component
Amber LED is on Power supply-fan
and blue LED is
v Amber Needs
on, and Overall
Attention LED
DS4800 Storage
on
Subsystem
v Blue Service
Needs Attention
Action Allowed
LED is on
LED on
RAID controller
v Amber
Controller
Needs
Attention LED
is on
v Blue
Controller
Service Action
Allowed LED
is on
Interconnect-
battery unit
v Amber Needs
Attention LED
is on
v Blue Service
Action Allowed
LED is on
Possible cause
Power supply-fan failure or
power supply failure
RAID controller offline
RAID controller failure
Interconnect-battery unit
failure
Possible solutions
Use DS4000 Storage Manager client software to
verify the failure and replace the power
supply-fan.
If you have placed the controller offline, use the
DS4000 Storage Manager client software to place
it online.
If one controller has been placed offline by the
other controller, contact IBM support. (This is the
case if you use the DS4000 Storage Manager
client software to make repeated attempts to bring
an offline controller online, but the controller keeps
reverting back to an offline state.)
If the RAID controller Needs Attention LED is on
and the Service Action Allowed LED for that RAID
controller is lit, replace the RAID controller.
If the Service Action Allowed LED for the RAID
controller is not lit, perform additional diagnostics
to identify other component failures. Replace the
other failed components before replacing the
RAID controller.
Contact IBM Support.
Chapter 6. Hardware maintenance
163