Online/Activity LED
(green)
Fault/UID LED (amber/
blue)
Definition
On, off, or flashing Alternating amber and
blue
One or more of the following conditions exist:
• The drive has failed.
• A predictive failure alert has been received for this
drive.
• The drive is selected by a management
application.
On, off, or flashing Solid blue One or both of the following conditions exist:
• The drive is operating normally.
• The drive is selected by a management
application.
On Flashing amber A predictive failure alert has been received for this
drive. Replace the drive as soon as possible.
On Off The drive is online but is not currently active.
1 flash per second Flashing amber Do not remove the drive. Removing the drive might
terminate the current operation and cause data loss.
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
remove the drive until the expansion or migration is
complete.
1 flash per second Off Do not remove the drive. Removing the drive might
terminate the current operation and cause data loss.
The drive is rebuilding, erasing, or is part of an array
that is undergoing capacity expansion or stripe
migration.
4 flashes per second Flashing amber The drive is active but a predictive failure alert has
been received for the drive. Replace the drive as
soon as possible.
4 flashed per second Off The drive is active and is operating normally.
Off Solid 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 Flashing amber 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.
Component identification 19
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