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KB450266 – Replacing Drives in ZFS Pool on FreeNAS 11.2

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  • This article will walk through the steps to replace a failed drive in a FreeNAS 11.2 installation.


  • Access to FreeNAS 11.2 web UI
  • Replacement Drive


  • First, we’ll have to go to the Storage > Pools tab.

  • Once here, we then select the cog wheel icon > Status to view the status of the pool.

  • Once here, we then need to identify the drive to be replaced, for this article we’ll use da0 as the problem drive.

  • We have to select the option wheel besides the problem drive, and then select Offline.

  • Once this is done, the drive will appear offline.
  • We can then replace the drive physically, once this is done we select the options wheel, and select Replace.

  • Then we select the replacement drive in the options here (Note, it will take a moment for the drive to appear as it has to power up)

  • Once this is done, the resilver will begin on the pool.

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