Re: Seeking advice on virtualization

2018-08-07 Thread Jakub Chromy
even cooler you get 'clones' so you can say make a raw/zvol of debian or whatever you like then if you make a snapshot of it and clone it to something else 'debian2' it uses no space until you write/delete/edit something, basically the clone only has diffs. yep... but it has some downsides t

Re: Seeking advice on virtualization

2018-08-07 Thread Paul Webster via freebsd-virtualization
even cooler you get 'clones' so you can say make a raw/zvol of debian or whatever you like then if you make a snapshot of it and clone it to something else 'debian2' it uses no space until you write/delete/edit something, basically the clone only has diffs. And yes zvols are literally like raw dev

Re: Seeking advice on virtualization

2018-08-07 Thread Jakub Chromy
I was writing about "hard disk file" format, in which a hypervisor (i.e. bhyve, kvm, virtualbox) is keeping a disk for emulated machine. Wikipedia calls it "img format": https://en.wikipedia.org/wiki/IMG_(file_format) Advantage from using this format (as opposed to something like qcow or vmhd) i

Re: Seeking advice on virtualization

2018-08-07 Thread Tomasz Rola
On Mon, Aug 06, 2018 at 12:07:13AM +0100, Paul Webster wrote: > In theory as ZFS works on both linux and BSD you could simply use vdevs and > snapshots for easy transport Um-hm. I was writing about "hard disk file" format, in which a hypervisor (i.e. bhyve, kvm, virtualbox) is keeping a disk for