Tell me how to increase the virtual disk with ZFS?

Alexander Yerenkow yerenkow at
Sat May 11 14:03:09 UTC 2013

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.

2013/5/11 Vladislav Prodan <universite at>

> I have a Debian server virtual ok with Proxmox.
> In one of the virtual machines is FreeBSD 9.1 ZFS with one disk to 100G.
> Free space is not enough, how to extend the virtual disk without losing
> data?
> Add another virtual disk and do a RAID0 - not an option. It is not clear
> how to distribute the data from the old virtual disk to the new virtual
> disk.
> The manual of the Proxmox is not mentioned :(
> You may have to do a Native ZFS for Linux on Proxmox and it will be easier
> to resize the virtual disk for the virtual machines?
> --
> Vladislav V. Prodan
> System & Network Administrator
> +380 67 4584408, +380 99 4060508
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Alexander Yerenkow

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