Comment by lutorm
Although "Top-level vdevs can only be removed if the primary pool storage does not contain a top-level raidz vdev, all top-level vdevs have the same sector size, and the keys for all encrypted datasets are loaded."
Although "Top-level vdevs can only be removed if the primary pool storage does not contain a top-level raidz vdev, all top-level vdevs have the same sector size, and the keys for all encrypted datasets are loaded."
> However, it is less important now that we have expansion.
Not really sure if that's true. They seem like two different/distinct use cases, though there's probably some small overlap.
I forgot we still did not have that last bit implemented. However, it is less important now that we have expansion.