User manual
3-12 TVC-1211 User Manual
020-100769-01 Rev. 4 (05-2012)
Section 3: Connecting the Controller
3.9.2 Monitoring Hard Disk Drives
Fault status lights on the hard drive indicate the health of the drive. A flashing light indicates a failing drive.
Table 3.2 Hard Drive LEDs
Online/
Activity LED
(green)
Fault LED (amber) Status
ON, OFF or
Flashing
Alternating amber and blue The drive has failed, or a predictive failure alert has been received for this
drive and 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 is not currently active.
Flashing
Regularly (1 Hz)
Amber, Flashing Regularly (1 Hz) DO NOT remove the drive. Removing the 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 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 the 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
Regularly
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 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.