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Server component identification 64
Table 17 Hot-plug SAS or SATA hard drive LED combinations
Online/Activity LED (green) Fault/UID LED (amber/blue) Interpretation
Flashing regularly
(1 Hz)
Off Do not remove the drive. Removing a
drive may terminate the current
operation and cause data loss.
The drive is rebuilding, or it is part of an
array that is undergoing capacity
expansion or stripe migration.
Flashing irregularly Amber, flashing regularly (1 Hz) The drive is active, but a predictive
failure alert has been received for this
drive. Replace the drive as soon as
possible.
Flashing irregularly Off The drive is active, and it is operating
normally.
Off Steadily amber A critical fault condition has been
identified for this drive, and the
controller has placed it offline. Replace
the drive as soon as possible.
Off Amber, flashing regularly (1 Hz) A predictive failure alert has been
received for this drive. Replace the drive
as soon as possible.
Off Off The drive is offline, a spare, or not
configured as part of an array.