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Swapping Case on a multi disk unit

Swapping Case on a 2Big, 4Big or 5Big

If you're ready to replace the enclosure on your DAS (2big, 4Big), please follow the below steps: 


  1. Make sure that the old device is powered off and all cables removed, including power
  2. Make sure all disks are numbered or identified in some way. The order is important for some RAID modes. 
  3. Remove the disks from the old enclosure
  4. On the new Case, verify that the RAID mode indicator matches the old case. If the RAID mode indicator is set to something different ALL OF THE DATA WILL BE LOST
  5. Insert the disks, in the correct order, into the new case
  6. Connect all of the cables, including power and power the device on

Provided that there has not been an error in any of the above steps, the device should power on and become available on your computer immediately. 


For replacing the case on a NAS unit (2Big Network, 5Big Network) you can follow these steps: 


  1. Confirm if possible that the device was previously updated to version 2.2.8. If not, you will not be able to perform a case swap. 
  2. Make sure that all the disks are numbered or identified. The order is important for RAID modes. 
  3. Remove the disks from the old enclosure
  4. On the new enclosure, do not connect the power or Ethernet. Insert the disks in order and lock them into position. 
  5. Connect the power and Ethernet and boot the device. 
  6. Access the web admin using your old credentials and confirm that the RAID and data are available. 
  7. If the device does not boot or no OS is available, then the disk firmware was not updated to 2.2.8. 


If you have an Office or Office+ product, the process is a lot simpler because there is no version or indicators to monitor. 


  1. Power off all devices and remove all cables. 
  2. Number the disks or otherwise identify them, some RAID modes require the disks to be in order. 
  3. Move the disks from the old unit into the new
  4. Reconnect all cables and power the device on, connect to the web admin or RDP to the Windows interface to confirm that the disk has booted normally. 

IMPORTANT NOTE: The steps above must be followed properly or the data could be lost. Any change in RAID mode, miss-ordering the devices or powering on with only some drives inserted can result in a RAID reset.