LaCie 4big Quadra
• D
esign
by
N
eil
P
oulton
Troubleshooting
User Manual
page 32
4.1. LED Status Indicators
Use the 4big’s front and rear LEDs and the chart below as a reference to determine the status of your 4big:
If the front
LED is:
And the rear
LED is:
And the RAID
mode is:
Then:
Solid blue
Blinking blue
All
The 4big is working properly, only active disks’ LEDs blink.
Blinking blue
Blinking blue
All
The 4big is starting up; front LED and LEDs of functional disks
become solid blue when initialized.
Dimming blue (5s)*
Off
All
The 4big is in standby mode. If the power switch is set to “auto”
the 4big will enter standby when your computer is either off or in
standby. If rebuilding has begun, the process will finish before
the 4big can enter standby. After 30 minutes of standby, the
LED will switch off.
Alternating long
blue and short red:
Three disks are
blinking blue, while
one disk is blinking
3 blue, 1 red:
RAID 10
RAID is rebuilding.
RAID 3
RAID 5
RAID 3+/5+
Solid red (failed
disks) and solid
blue (functional
disks)
RAID 10
One drive has failed or was improperly inserted; RAID is func-
tional but the security of the drives has been compromised.
RAID 3
RAID 5
RAID 3+/5+
Solid red
Solid red (failed
disks) and solid
blue (functional
disks)
RAID 0
One or more drives have failed or are improperly inserted; RAID
is not functional.
Concatenation
RAID 10
Two or more drives have failed or are improperly inserted; RAID
is not functional.
RAID 3
RAID 5
RAID 3+/5+
Blinking blue/red
Normal LED activity
All
Temperature alert; allow the 4big to finish current processes and
then shut it down. Make sure the ventilation holes on the back
of the 4big are not obstructed and that there is ample room for
airflow around the unit. Allow the 4big to cool before turning it
back on.
* LED dims for 5 seconds and then remains at a low intensity.
continued on the next page
