User manual

Table Of Contents
LaCie 5big Thunderbolt 2 User Manual 23
Important info: LaCie does not recommend applying a long push to power off the enclosure. See the note
for long push below.
Short push
Important info: Always eject the LaCie 5big volumes from your computer before applying a short push.
A short push is a manual depression on the LED power button that lasts no longer than one second. When the
product is operating, a short push will spin down the hard drives within the enclosure. The Thunderbolt 2 ports
remain active and are available for daisy chaining. This is called idle mode. For example, a display that is daisy
chained with the LaCie 5big will remain available to the computer following a short push.
Short push and RAID synchronization
Applying a short push during RAID synchronization will spin the hard drives down. The RAID synchronization will
continue the next time you spin the hard drives up via a short push.
Long push
A long push is a manual depression on the button that lasts more than four seconds. When the product is
operating, a long push will cut the power from the LaCie 5big, forcing it to shut down immediately. A long push
is not recommended as it may result in data loss.
Removing the Thunderbolt cable during operation
It is highly recommended that users keep the Thunderbolt cable connection between the computer and the
LaCie 5big during operation. Removing the cable during operation can have serious consequences, such as lost
data. If the cable is removed while the system is synchronizing the RAID, the synchronization will continue but
you will lose connection with the computer and your data.
QUIET OPERATION AND HEAT MANAGEMENT
To reduce noise during operation, the LaCie 5big Thunderbolt 2 uses a Noctua® cooling fan to pull heat away
from the internal components. In addition to being exceptionally quiet, the Noctua cooling fan is temperature
controlled, which guarantees optimal heat management by adjusting the rotational speed for the environment.
Additionally, the LaCie 5big enclosure's metal casing dissipates heat from the hard drives, keeping them safe
and prolonging their life. Since LaCie's unique design draws heat away from the internal hard drives, the
external casing will be warm to the touch after extended use.
Important info: The LaCie 5big’s wide exhaust chamber on the rear of the device allows for enhanced
airflow. Make sure that it is not obstructed and that there is a natural airflow across the casing.