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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