ZFS port to FreeBSD: 2nd patchset available.
Barry Pederson
bp at barryp.org
Tue Mar 6 16:28:27 UTC 2007
Joao Barros wrote:
> After some tries I finally got it to buildworld, but at 3am I never
> got to test anything other than 'kldload zfs'
>
> I was reading the man pages and I was wondering if files are supported
> devices like in this example:
>
> Example 4 Creating a ZFS Storage Pool by Using Files
>
> The following command creates an unmirrored pool using files. While
> not recommended, a pool based on files can be useful for experimental
> purposes.
>
> # zpool create tank /path/to/file/a /path/to/file/b
>
> I'd have to feed some noisy disks to my machine if file devs are not
> supported -.-
I tried something like that, with a 512mb file:
dd if=/dev/zero of=/tmp/foo bs=1048976 count=512
zpool create tank /tmp/foo
but it comes back with
cannot use '/dev//tmp/foo': must be a GEOM provider
mdconfig is one way to go here, creating a memory disk based on that
file. and then creating a pool from that
mdconfig -a -t vnode -f /tmp/foo
(comes back with "md0" perhaps, meaning it's created a /dev/md0 )
zpool create tank md0
and you should be in business.
Barry
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