
SATA hard drive
LEDs
Each SATA hard drive has two LEDs. The following figure and table describe their locations and meanings.
Item 1
Online/
Activity LED
(green)
nl
Item 2
Fault/
UID LED
(amber/
blue)
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Meaning
On,off,or
blinking
Alternat
ing
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
blinking
Steadily
blue
The drive is operating normally and has been selected by a management application.
On
Amber,
blinking
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.
Blinking
regularly (1
Hz)
Amber,
blinking
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.
Blinking
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 a stripe size migration.
Bli
nking
irr
egularly
Amb
er,
bli
nking
reg
ularly (1
Hz
)
The drive is active, but a predictive failure alert has been received for this drive. Replace
the drive as soon as possible.
Blinking
irregularly
Off
The drive is active and 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
A
mber,
b
linking
r
egularly (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,aspare,ornotconfigured as part of an array.
1510i Modular Smart Array maintenance and service guide
23
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