Table 56. Symptom-to-FRU index (continued)
Problem
indicator Component Possible cause Possible solutions
Amber LED is
on, green LED is
off, blue LED is
off, and Overall
Storage
Subsystem
Needs Attention
LED is on
Power supply
and fan unit
v Amber Needs
Attention LED
on
v Blue Service
Action Allowed
LED off
v Green Power
LED off
v Power switch on a power
supply and fan unit is
turned off.
v An electrical outlet circuit
breaker has been tripped.
v There has been an ac
power failure.
v The circuit breaker in the
RAID controller
associated with this PSF
has been tripped.
Check the power supply and fan unit power
switches, circuit breakers, and ac power source.
If none of these sources are the cause of the
fault, then do not replace the failed power supply
and fan unit until you have performed additional
diagnostics to determine why the Service Action
Allowed LED on the power supply and fan unit is
not lit. Call IBM Support if needed.
Interconnect-
battery unit
v Amber Battery
Needs
Attention LED
on the
interconnect-
battery unit is
on
v Green Battery
LED on the
power supply
and fan unit is
off
Battery failure Verify the failure using DS Storage Manager Client
and replace the failing battery.
Interconnect-
battery unit
v Green Power
LED on
interconnect-
battery unit is
off
v Amber Battery
Needs
Attention LED
on the
interconnect-
battery unit is
on
Interconnect-battery unit
failure or midplane failure
Call IBM support.
RAID controller
v Amber
Controller
Needs
Attention LED
is on.
Controller failure or
controller placed offline
Use DS Storage Manager client software to place
the controller online. If the failure persists, do not
replace the controller unit. Instead, perform
additional diagnostics (such as checking the
power supply and fan unit components) to
determine what additional failures have caused
the associated Service Action Allowed LED on the
controller not to light.
204 IBM System Storage DS5100 and DS5300 Storage Subsystem: Installation, User’s, and Maintenance Guide
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