On 6/14/07, Paul Hedderly <paul+os@xxxxxxx> wrote:
Is this currently possible?
You may be able to do this my specifying a sparse file for the last
device, and then immediately issuing a "zpool offline" of it after the
pool is created. It seems to work, and I was able to create a pool
that way with no complaints.
You can create a 400GB sparse file with something like:
dd if=/dev/zero bs=1024k count=1 seek=400000 of=/path/to/vdev_file
Unfortunately, tmpfs doesn't seem to support sparse files, and while
it did appear to work on a ZFS filesystem, I'm not sure if it is a
good idea. (I don't have any UFS filesystems.) Perhaps someone else
can comment on this?
Still, you will have no redundancy during this operation, so I hope
you have backups.
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