Hitachi AMS 2100 Hardware Manual page 93

LOC LED
The (orange) LOC (locate) LED indicates various controller conditions
depending on the speed and number of blinks, as described in
See Chapter 8, Troubleshooting
Hitachi Data Systems Technical Support for help.
Number
of blinks
Voltage on the control unit is abnormal. (Reset of the control unit is not
6 (slow)
canceled)
1
1 (fast) SRAM error.
2 (fast) ENC hard error.
3 (fast) Firmware error in flash memory.
4 (fast) ENC firmware has detected a CUDG error in the ENC unit.
Boot section error in the ENC firmware, a RAM error, or ENC hard
ON
configuration error.
1.When blinking fast, the LED is on for 400ms and off for 200 ms for each fast
blink. After the number of fast blinks has completed, the LED ID off for one
second.
Hardware components
Hitachi AMS 2100/2300 Storage System Hardware Guide
to solve indicated problems and/or call
Table 4-16: LOC LED
Description
Table 4-16.
4–21