HP Surestore Disk Array 12h - And FC60, Advanced User'S Manual, Page: 374 / 466

374
Controller Enclosure Troubleshooting
“Battery Low” error
issued by software Power turned OFF for
extended period and
drained battery power. Turn ON the power and allow controller
module to run 7 hours to recharge the
batteries.
If after 7 hours, the battery low error
persists, replace the BBU.
Batteries are weak and
FRU is due for
replacement. Check the last service date for the BBU. If it
has been two years since the battery was
replaced, replace the BBU.
BBU is new but will not
hold a charge Battery charger board
failure Replace the BBU. Allow the system to run
for at least 7 hours in order to properly
charge the batteries. If this does not solve
the problem, go to cause B.
Faulty battery harness Replace both power supplies.
Replace the battery harness.
Loss of battery backup
during a power outage Battery failure or BBU is
missing. Replace the BBU.
Power Supply Module
No power to the
controller module (all
Power LEDs off) Power switches are turned
off. Turn ON both power switches on the
controller enclosure.
Turn ON the main circuit breakers in the
rack, if applicable.
Power cords unplugged. Make sure all power cords are plugged in
securely.
Power supply modules
overheated or failed. Lower the room temperature if it is too high,
unblock enclosure vents if they are
obstructed, replace any failed fans in the
enclosure, or replace the power supply
module.
One Power Supply LED
(FRU) is ON and the
other is off A Power supply module is
turned OFF or
unplugged.
Plug in the power cord and turn ON the
power switch. If the LED remains off, go to
cause B.
B Power supply module is
overheated or failed.
Lower the room temperature if it is too high,
unblock enclosure vents if they are
obstructed, replace any failed fans in the
enclosure, or replace the power supply
module.
Table 49
Master Troubleshooting Controller
(cont’d)
Symptom Possible Cause Procedure