Tell me how to increase the virtual disk with ZFS?

Alexander Yerenkow yerenkow at
Sat May 11 15:13:49 UTC 2013

2013/5/11 Paul Kraus <paul at>

> On May 11, 2013, at 10:03 AM, Alexander Yerenkow <yerenkow at>
> wrote:
> > There's no mature (or flexible, or "can do what I want" ) way to
> > increase/decrease disk sizes in FreeBSD for now {ZFS,UFS}.
> > Best and quickest way - to have twice spare space, copy data, create new
> > sufficient disk and copy back.
> Is this a statement or a question ? If a statement, then it is factually
> FALSE. If it is supposed to be a question, it does not ask anything.

It was a statement, and luckily I was partially wrong, as Vladislav did
made what he wanted to.
However, last time I checked there were no such easy ways to decrease
zpools or increase/decrease UFS partitions.
Or grow mirrored ZFS as easily as single zpool. Or (killer one) remove
added by mistake vdev from zpool ;)
Of course I'm not talking about real hw, rather virtual one.
If you happen to point me somewhere to have such task solved I'd be much

> --
> Paul Kraus
> Deputy Technical Director, LoneStarCon 3
> Sound Coordinator, Schenectady Light Opera Company

Alexander Yerenkow

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