Table 6-1. Troubleshooting
Problem indicator
Component
Possible cause
Possible solutions
Amber LED is lit
Drive (drive fault
LED)
Drive failure
Replace the failed drive. See Chapter 5,
“Replacing components,” on page 5-1 for
more information.
Drive uncertified
Verify the drive and part number to make
sure that it is supported by the DS3500.
See http://www.ibm.com/systems/
storage/disk/.
storage controller
(service action
required LED)
controller failure
Replace the controller. See Chapter 5,
“Replacing components,” on page 5-1 for
more information.
The controller was placed
offline by a user or the
other controller.
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.
storage controller
(battery fault LED)
Battery unit failure
Use the Storage Manager software to
confirm the failure; then, replace the failed
battery unit.
storage controller
(SAS link service
action LED)
SAS cable failure
Replace the SAS cable.
SAS host bus adapter
failure
Check the SAS host bus adapter in the
host and replace the adapter if necessary.
SAS port failure
Replace the controller. See Chapter 5,
“Replacing components,” on page 5-1 for
more information.
Front bezel
(system error LED)
General machine fault
A fault LED is lit somewhere on the
storage subsystem (check for amber LEDs
on components).
General machine fault
(continued)
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.
6-2
System Storage DS3500 and EXP3500: Installation, User's, and Maintenance Guide
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