Connectors, Switches, and LEDs 34
Table 6 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
• The drive is not in a failed state.
• The drive is selected (unit identification)
Solid amber
• The drive is in a failed state.
• The drive is not selected.
Flashing amber @ 1 Hz
50% duty cycle
Flashing amber/blue @ 1
Hz 50% duty cycle
• The drive is in a predictive failure state.
• The drive is not in a failed state.
• The drive is not selected.
• The drive is in a failed or predictive failure
state.
• The drive is selected.
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