You can use dd. You may need to set the volmode depending on your platform to
get access to the volume's device node. /dev/zvol/<poolname>/<zvolname>
> On Sep 22, 2016, at 2:28 PM, Dave Osbourne <d...@osbourne.uk.eu.org> wrote:
> I fear this may be wrong list... I googled, found and joined it... let me
> know if I've got it wrong...
> I have a situation where I want to do the equivalent of "dd" the content of a
> zfs volume out to have effectively a copy of the raw device.
> I've got zfs send > x.out and zfs receive < x.out working, but I'm not sure
> how to interact with the zfs volume at a block level... presumably there
> must be a way to get the equivalent of a
> dd if=<blockdevice> of=/copy-of-blockdevice.dd ?
> such that if I needed to use copy-of-blockdevice.dd on another system without
> ZFS I could write it do a physical drive?
> I think I'm missing something fundamental. I've read that zfs can do blockIO
> (with volumes), but *I* can't seem to find out how to interact with it on
> that level...
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