Common problem resolution 20
• Drives must be the same capacity to provide the greatest storage space efficiency when drives are
grouped together into the same drive array.
Hard drive LED combinations
Hot-plug SCSI hard drive LED combinations
Activity
LED (1)
Online
LED (2)
Fault
LED (3)
Interpretation
On, off,
or
flashing
On or off Flashing A predictive failure alert has been received for this drive.
Replace the drive as soon as possible.
On, off,
or
flashing
On Off The drive is online and is configured as part of an array.
If the array is configured for fault tolerance and all other drives in
the array are online, and a predictive failure alert is received or a
drive capacity upgrade is in progress, you may replace the drive
online.
On or
flashing
Flashing Off
Do not remove the drive. Removing a drive may terminate the
current operation and cause data loss.
The drive is rebuilding or undergoing capacity expansion.
On Off Off Do not remove the drive.
The drive is being accessed, but (1) it is not configured as part of
an array; (2) it is a replacement drive and rebuild has not yet
started; or (3) it is spinning up during the POST sequence.
Flashing Flashing Flashing
Do not remove the drive. Removing a drive may cause data loss in
non-fault-tolerant configurations.
One or more of the following conditions may exist:
The drive is part of an array being selected by an array
configuration utility
Drive Identification has been selected in HP SIM
The drive firmware is being updated
Off Off On
The drive has been placed offline due to hard disk drive failure or
subsystem communication failure.
You may need to replace the drive.
Off Off Off One or more of the following conditions may exist:
The drive is not configured as part of an array
The drive is configured as part of an array, but it is a
replacement drive that is not being accessed or being rebuilt yet
The drive is configured as an online spare
If the drive is connected to an array controller, you may replace the
drive online.
SAS and SATA hard drive LED combinations
NOTE: Predictive failure alerts can occur only when the server is connected to a Smart Array
controller.
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