IBM DS3500 Installation, User's, And Maintenance Manual page 158

Table 6-1. Troubleshooting
Problem indicator
Amber LED is lit
6-2
System Storage DS3500 and EXP3500: Installation, User's, and Maintenance Guide
Component Possible cause
Drive failure
Drive (drive fault
LED)
Drive uncertified
controller failure
storage controller
(service action
required LED)
The controller was placed
offline by a user or the
other controller.
Battery unit failure
storage controller
(battery fault LED)
SAS cable failure
storage controller
SAS host bus adapter
(SAS link service
failure
action LED)
SAS port failure
General machine fault
Front bezel
(system error LED)
General machine fault
(continued)
Possible solutions
Replace the failed drive. See Chapter 5,
"Replacing components," on page 5-1 for
more information.
Verify the drive and part number to make
sure that it is supported by the DS3500.
See http://www.ibm.com/systems/
storage/disk/.
Replace the controller. See Chapter 5,
"Replacing components," on page 5-1 for
more information.
Use the Subsystem Management window
to place the controller back online. If the
controller continues going to an offline
state after being placed online, replace the
controller.
Use the Storage Manager software to
confirm the failure; then, replace the failed
battery unit.
Replace the SAS cable.
Check the SAS host bus adapter in the
host and replace the adapter if necessary.
Replace the controller. See Chapter 5,
"Replacing components," on page 5-1 for
more information.
A fault LED is lit somewhere on the
storage subsystem (check for amber LEDs
on components).
Open the Subsystem Management window
and click Recovery Guru to see problems
in the DS3500 configuration.
Some errors cause the system error LED to
be lit but not cause any individual
component fault LEDs to be lit. (Drive
PFA exceeded or nominal temperature
exceeded errors are examples.) Follow the
corrective actions in the Recovery Guru
window.