Amber and green LEDs
are lit
Power supply
(Amber fault LED is
lit and both power
LEDs are not lit, AC
power or DC IN
LED is lit and DC
power or DC out
LED is not lit)
Power supply failure Replace the failed power supply. See
“Replacing components” on page 89 for
more information.
Fan assembly
Fan failure Replace the fan assembly.
Drive Drive not certified Verity the drive and part number to make
sure the drive is supported by the
DCS3700. See http://www.ibm.com/
systems/storage/disk
Drive failure Use Storage Manager to identify the failed
drive; then replace the failed drive.
All amber and green
LEDs are slowly
flashing
All drives
(activity and fault
LEDs are not lit)
Check for and solve one of the following situations:
v storage enclosures are not correctly connected to the DCS3700.
v DCS3700 does not have the correct firmware version.
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.
Power failure Check the main circuit breaker and ac
receptacle (ac models). Check the -48 V dc
power source and disconnect device (dc
models).
Power-supply failure Replace the power supply.
Operating environment is
too hot
Cool down the environment.
Midplane failure Contact your IBM technical support
representative.
Amber LED is flashing Drives (fault LED is
lit)
Drive identification is in
process
No corrective action is needed.
Front panel One or multiple
components has
intermittent problems
Use the Storage Manager Recovery Guru
menu function and the Major Event Log to
troubleshoot the problem.
132 IBM System Storage DCS3700: Installation, User, and Maintenance Guide
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