IBM DS3500

Table 9. Troubleshooting (continued)
Problem
indicator Component Possible cause Possible solutions
All green LEDs
are off
All components Subsystem power is
off
Make sure that all storage
subsystem power cables are
connected and that the
power-supply switches are on. If
applicable, make sure that the
main circuit breakers for the rack
are turned on.
AC power failure Check the main circuit breaker
and ac receptacle.
Power-supply failure Replace the power supply.
Operating
environment is too
hot
Cool down the environment.
Amber LED is
flashing
Drives (fault
LED is lit)
Drive identification
is in process
No corrective action is needed.
One or more
green LEDs are
off
Power supplies Power cable is
disconnected or
switches are turned
off
Make sure that the power cord is
connected and that the switches
are turned on.
All drives Midplane failure Replace the DS3500. Contact
your IBM technical-support
representative.
Several
components
Hardware failure Replace the affected
components. If this does not
correct the problem, replace the
RAID controllers. Contact your
IBM technical-support
representative.
The DS3500 was
not powered-on, or
all SAS cable
connections
between the
expansion
enclosures and the
DS3500 storage
subsystem failed.
Perform one of the following
actions:
v Power-on the storage
subsystem.
v Make sure that the SAS cable
connections between the
expansion enclosures and the
DS3500 storage subsystem
are made.
Front panel Power supply
problem
Make sure that the power cables
are connected and that the power
supplies are turned on.
Hardware failure If any other LEDs are lit, replace
the midplane. Contact your IBM
technical-support representative.
130 System Storage DS3500 and EXP3500: Installation, User’s, and Maintenance Guide