HP ML110 G2 - Hard Drive Guidelines

Troubleshooting 42
View additional documentation on updating firmware, such as the Regular Firmware Updates Essential for
Optimal Performance and Functionality of HP ProLiant Servers white paper, on the HP ROM-
BIOS/Firmware Updates website (http://h18023.www1.hp.com/support/files/server/us/romflash.html
).
Hard drive guidelines
SAS and SATA hard drive guidelines
When adding hard drives to the server, observe the following general guidelines:
• The system automatically sets all drive numbers.
• If only one hard drive is used, install it in the bay with the lowest drive number.
• 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.
SAS and SATA hard drive LED combinations
NOTE: Predictive failure alerts can occur only when the server is connected to a Smart Array controller.
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.
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
Amber, flashing
regularly (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, a spare, or not configured as part of an
array.