ZFS port to FreeBSD: 2nd patchset available.

[Russell Jackson]

Barry Pederson wrote:
> 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

You can also use ggatel to make a GEOM provider out of a file.

-- 
Russell A. Jackson <raj at csub.edu>
Network Analyst
California State University, Bakersfield
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