Component identification 16
SAS and SATA drive LED combinations
Online/activity
LED (green)
Fault/UID LED
(amber/blue)
Interpretation
On, off, or
flashing
blue
The drive has failed, or a predictive failure alert has been
received for this drive. The drive also has been selected by a
management application.
On, off, or
flashing
Steadily blue The drive is operating normally, and it has been selected by a
management application.
On
Amber, flashing
regularly (1 Hz)
A predictive failure alert has been received for this drive.
Replace the drive as soon as possible.
On
Off The drive is online, but it is not active currently.
Flashing regularly
(1 Hz)
Amber, flashing
regularly (1 Hz)
The drive is part of an array that is undergoing capacity
expansion or stripe migration, but a predictive failure alert has
been received for this drive. To minimize the risk of data loss, do
not replace the drive until the expansion or migration is
complete.*
Flashing regularly
(1 Hz)
Off 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.
* Do not remove the drive. Removing a drive might terminate the current operation and cause data loss.
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