Server component identification 84
•
If only one hard drive is used, install it in the bay with the lowest number.
• Hard drives must be SFF types.
• Drives must be the same capacity to provide the greatest storage space efficiency when drives are
grouped together into the same drive array.
NOTE: ACU does not support mixing SAS and SATA drives in the same logical volume.
SATA or SAS hard drive LEDs
Item LED description Status
1 Fault/UID status Amber = Drive failure
Flashing amber = Fault-process activity
Blue = Unit identification is active
Off = No fault-process activity
2 Online/Activity status Green = Drive activity
Flashing green = High activity on the
drive or drive is being configured as part
of an array
Off = No drive activity
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.
