"zpool remove" failing

[Nikos Vassiliadis]

On 1/19/19 6:39 PM, jdelisle wrote:
> I'm grasping at straws here, but could this functionality be incomplete in
> 11.2-RELEASE?  Would connecting my disks to a 12.0-RELEASE system help?
> 
> It's easy for me to do that, but is it safe to move them to a 12.0-RELEASE
> system, run the "zpool remove", then move them back to my 11.2-RELEASE
> system?
> 
> Is there any diagnostic output I could share that would help?
> 
> I'm still confused by the error I'm getting from "zpool remove".. I'm
> attempting to remove a top-level mirror vdev, and they're all the same
> sector-size.

ZFS has used stripesize to configure the newly added mirror.
It does have a different sector size and this is why it cannot
remove it anymore. If you examine the pool with zdb you can
confirm it yourself. Sorry for the bad news...

Nikos