Hitachi AMS 2100 Hardware Manual page 247

Table 8-2:
Unit Symptom
Power Supply Ready LED OFF
Ready LED blinking
Alarm LED ON
Controller C-Power LED ON
RST LED blinking
Link LED OFF
ACT LED OFF
6 (slow)
1 (fast)
2 (fast)
3 (fast)
4 (fast)
LCT LED ON
Expansion Unit Power LED OFF
Hitachi AMS 2100/2300 Storage System Hardware Guide
LED Failure Indications
Possible Cause
No power to power supply
Not a failure. Means that
power is connected to the
power supply.
The power supply has failed.
The cache memory is backed
up.
Not a failure. Blinks while the
base unit is resetting.
Link status is abnormal
No data is being transferred.
Voltage on the control unit is
abnormal. (Reset of the
control unit is not canceled.)
a
SRAM error.
ENC hard error.
Firmware error in flash
memory.
CUDG error in ENC.
Boot section error in the ENC
firmware, a RAM error, or ENC
hard configuration error.
1. Array power switch OFF
2. Power supplies not
plugged in
3. PDB switch or breaker
OFF
4. No electric supply to rack
Troubleshooting
(Continued)
Action
1. Ensure that power cables
to the equipment are
connected.
2. Ensure that the power
source is operational.
Use normally
Replace the power supply.
Wait until reset completes
before using the base unit.
Check LAN cable connections
and communications settings.
See Navigator 2 cannot
communicate with the
Replace the controller
1. Ensure that the ENC cables
are connected from the base
unit to the expansion unit and
that Ensure that the array
power switch is ON
2. Check that the power cable
connections to the expansion
unit and the PDB are secure.
3. Ensure that the PDB
switches in the rack are ON.
4. Verify electricity supply to
the rack. Work with facility
administrator to restore power.
If these steps do not fix the
problem, contact Technical
Support. See Getting help
the Preface of this manual.
array.
in
8–7