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This manual covers:

Products Operating System Version
LaCie 2big NAS LaCie NAS OS 3 (learn more here)
LaCie 5big NAS Pro LaCie NAS OS 3

Congratulations on your purchase of a LaCie professional NAS (network-attached storage device). Designed to satisfy the data sharing and backup needs of small, medium, and branch offices, your product belongs to a new generation of NAS.

This manual will guide you through the process of connecting the LaCie NAS to your network and will assist you in troubleshooting any issues that might arise. If you encounter problems, check Getting Help. Note that most of the problems users encounter can be resolved by resetting the product to factory conditions (see 2big NAS Reset or 5big NAS Pro Recovery).

Box content

LaCie 2big NAS LaCie 5big NAS Pro
Ethernet cable
External Power supply
Utilities CD-ROM with
Drive stand for upright use ––
Disk drawer key
USB Key for install and recovery ––
Cable management clip ––

Important info: Please save your packaging. In the event that the drive should need to be repaired or serviced, it must be returned in its original packaging.


Minimum system requirements

  • Latest version of Windows® XP, Windows Vista®, Windows 7, Windows 8 / Mac® OS X 10.5 or higher
  • Web browsers: Internet Explorer™ 7.0 or higher, Firefox™ 3.0 or higher, Safari™ 3.0 or higher, or Chrome 2.0 or higher
  • Computer with an Ethernet network adapter
  • Ethernet switch or router 10/100/1000 (Mb/s)

Important info:
Your LaCie product's performance can be affected by such external forces as network activity, hardware, distance, and setup.

For optimal performance, use a Gigabit Ethernet router and a Gigabit Ethernet board in your host computer.

© LaCie 2024 Last modified : Mar 14, 2014