Apologies for double post On Mon, Nov 10, 2014 at 12:01 PM, Mailing Lists <l...@dorkington-hackers.com > wrote:
> Hi, > > This may be a stupid request and potentially covered at some point - I did > find a wiki entry relating to the broad concept here > <http://wiki.xen.org/wiki/Proposal:_Disk_import/export>. > > Basically I want to be able to selectively snapshot different aspects of a > VM. We have a lot of machines running off a small OS disk, with larger data > disks. I want to be able to do a snapshot of the OS disk selectively, which > I can do with the API and the exposing mechanism from the wiki. This is > because the data on the larger disks is usually part of a separate backup > process and can be recovered with different methods - also most of the SR's > that we run these VMs on are not really large enough to be able to snapshot > all of the disks. However, if I do it this way it means that I also open > myself up to having potentially unrestorable machine images. > > What I am wondering is if there is a way of performing a memory only > snapshot? My strategy would be that I pause a vm, snapshot the OS disk, > then dump the memory somehow, unpause the VM and then sync the snapshots to > a backup unit. Given that I can perform a disk and memory snapshot, I > wouldn't have thought this would be too out of the question? > > Please feel free to point out that what I'm asking for is completely > stupid - I freely admit I haven't done a giant amount of research on this > point. > > Thanks > Jon > >
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