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Component identification 8
SAS and SATA hard drive LEDs
Item Description
1 Fault/UID LED (amber/blue)
2 Online LED (green)
SAS and SATA hard drive LED combinations
Online/activity LED
(green)
Fault/UID LED
(amber/blue)
Interpretation
On, off, or flashing
Alternating amber
and blue
The drive has failed, or a predictive failure alert has been
received for this drive; it 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)
Do not remove the drive. Removing a drive may
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 replace the drive until the expansion or migration is
complete.
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.