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Changing the RAID Mode


Note: Your LaCie 4big comes preconfigured in RAID 0 (Fast) mode. RAID 0 allows access to the whole storage capacity but does not provide any security. If a drive fails, all data will be lost. If you are concerned about data security, LaCie highly recommends a RAID 10, 3, 3+SPARE, 5, or 5+SPARE configuration.

Important Info: Changing the RAID mode destroys data stored on the LaCie 4big. If you have saved data on the drives, back up data before following these steps.

To change the RAID mode:

    1. Unmount or safely remove the 4big Quadra volumes from your computer, disconnect the interface cable and switch off the 4big.
    2. To enter RAID modification mode, push and hold the front button and simultaneously turn on the 4big. Continue holding the front button for 15 seconds.
    3. Push the + or - buttons on the RAID mode selector until the desired RAID number appears.

        4. Note: 0=RAID 0, 1=RAID 10, 2=Concatenation, 3=RAID 3, 4=RAID 3+Spare, 5=RAID 5, 6=RAID 5+Spare, 7=N/A.

        Note: Although the number 7 appears in the RAID selector, no RAID changes will take effect if 7 is selected.

    4. Validate the mode by pushing and holding the front LED button for 2 seconds.
    5. Let the drives turn on, and then turn off the 4big, allow it to shut down and turn it back on.
    6. Partition the disks. Note: You must partition the disk drives after changing the storage policy configuration.

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