Tag: zfs send/recv

ZFS Disaster Recovery: Rebuilding and Mirroring a Pool After Top-Level Vdev Error

I recently learned a hard lesson about ZFS Vdev architecture after attempting to convert a single-disk pool into a mirror. By mistake, I added the new disk as a top-level Vdev, rather than attaching it as a mirror. As zpool remove and zpool detach both failed on the top-level Vdev, I was forced to destroy the pool and restore the data from a snapshot.

This process outlines how I recovered data and subsequently created a proper mirror configuration.

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ZFS Data Migration: Encrypting Existing Volumes with zfs send and zfs recv

Encrypting previously unencrypted data, such as a legacy ZFS pool, requires a reliable migration strategy. The most robust way to achieve this is by using the powerful ZFS data stream mechanism: zfs send and zfs recv.

The core procedure is simple: create a snapshot, transfer this snapshot, and receive it at a new, encrypted destination.

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