Re-sparse a file-backed IO device + zfs

[Adam Vande More]

On Mon, Dec 12, 2016 at 7:20 PM, javocado <javocado at gmail.com> wrote:

> Hi,
>
> I'm setting up a bhyve wherein:
>
> host #  truncate -s 1T vol.file
> host #  du -ah vol.file
> 200K    vol.file
>
> host #  /usr/sbin/bhyve ... -s 4,ahci-hd,vol.file ...
>
> Then inside the bhyve I create a zpool (ada0 = vol.file):
>
> bhyve #  zpool create -O devices=off -O atime=off -O compression=on -m
> /mnt/data1 data1 ada0
>

I think there used to be a utility called sparsify.



-- 
Adam