17–12 Troubleshooting
Hitachi Unified Storage Hardware Service Guide
READY LED does not go ON or
READY LED went ON and then OFF
1. Is the POWER LED on the Controller Box ON?
•Yes: Go to step 2.
• No: Go to step 4 in POWER LED does not go
ON on page 17-10.
2. Is the ALARM LED on the controller ON?
• Yes: See ALARM LED is ON on page 17-12.
• No: Go to step 3.
3. Does the green
READY LED on the Controller
Box blink fast?
• Yes: Internal processing is occurring. Wait for
the green
READY LED on the Controller Box
to go ON (up to 50 minutes, 60 minutes for
the CBL/CBLD, or 180 minutes when the DBW
is connected to the CBL). The storage system
will be operational even if the
READY LED
blinks fast.
• No: Go to step 4.
4. Does the orange
WARNING LED blinks fast
• Yes: Storage system is updating flash or
internal processing is occurring on a single-
controller storage system after the system
has been turned on. Wait for the orange
WARNING LED on the Controller Box to go
OFF and the green
READY LED on the
controller to go ON because flash is being
updated.
• No: Go to step 5.
5. Turn OFF the main switch.
6. Wait more than one minute and then set the
main switch to ON.
7. Is the
READY LED on the Controller Box ON?
• Yes: Continue to use the equipment. If the
green
READY LED blinks fast, the storage
system is operational. Go to step 10.
• No: Go to step 8.
8. Set the main switch to OFF.
9. Contact your administrator.
10. End of procedure.
ALARM LED is ON 1. Identify which components failed.
2. Contact your administrator and do not disturb
the equipment
Table 17-2: Using LEDs to diagnose problems (Continued)
Problem Corrective action
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