Applying encryption to ZFS retroactively?

• zfs

  721 10,140 9.7 C

  OpenZFS on Linux and FreeBSD

  

That's no longer the case. Encrypted datasets can now "contain" unencrypted children. In fact it's the default the you receive an unencrypted stream. You need to use a -x encryption if you want the destination dataset to inherit the encryption from its new parent. Specifying encrpytion options with -o also works.

• zfs-replicate

  1 4 3.8 Python

  A zfs send wrapper somewhat in the style of rsync

Take a recursive snapshot. Use the right send/recv options to get everything to the new pool and maintain encryption. You might try https://github.com/rlaager/zfs-replicate but seriously, I have not tested exactly this scenario, it might break, and if it does, you get to keep the pieces (don't blame me). If you go this route, I'd love to hear if it worked.

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