Connectors, switches, and LEDs 79
Table 8 Hard drive activity LED indicator status
Item LED indicator Status Description
Flashing green during a
drive activity (if
command is outstanding
continually the indicator
is forced to flash at 4 Hz
50% duty cycle instead
of solid off)
• The drive is currently performing an
I/O activity.
• The drive is a member of a RAID
volume.
• The drive is not in a replacement or
failed state for any volumes that it is
a member of (drive is online).
• The drive is not rebuilding.
• The drive is not a member of a
volume undergoing capacity
expansion or RAID migration.
Flashing green @ 1 Hz
50% duty cycle (override
drive activity output)
• The drive is rebuilding.
• The drive is a member of a volume
undergoing capacity expansion or
RAID migration.
2 Drive Online/Error LED
indicator
Off
• The drive is not in a failed state.
• The drive is not selected (unit
identification).
Solid blue
• te. The drive is not in a failed sta
• The drive is selected (unit
identification).
Solid amber
• The drive is in a failed sta
•
te.
The drive is not selected.
1 Hz
0% duty cycle
• ive is in a predictive failure
state.
The drive is not selected.
• a failed or predictive
• The drive is selected.
Flashing amber @
5
Flashing amber/blue @ 1
Hz 50% duty cycle
The dr
state.
• The drive is not in a failed
•
The drive is in
failure state.