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Component identification 11
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 currently active.
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 a stripe size 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 array expansion, logical drive extension, a stripe
size migration, or RAID migration.