Re: KVM virtual machines and storage.
On Wed, Jun 13, 2012 at 2:19 PM, Christofer C. Bell
<christofer.c.bell@gmail.com> wrote:
> On Wed, Jun 13, 2012 at 1:32 PM, Alan Chandler
> <alan@chandlerfamily.org.uk> wrote:
>> I currently run a necessary Windows 7 (Home Premium) installation in a
>> VirtualBox virtual machine on my Debian Unstable desktop. Its OK, but I
>> have had the occasional glitch when Debian tries to upgrade by kernel
>> version and for one reason or another the VirtualBox kernel module hasn't
>> kept up.
>>
>> I would like to migrate to a KVM setup, where the required module is in the
>> mainline kernel. I feel that would be safer longer term.
>>
>> One problem, which I haven't satisfactorily solved so far, is backing up the
>> files on the disk in that virtual machine. The best I can do is back up the
>> entire file that represents the disk. However the vast majority of that
>> disk is not changing on a regular basis and at 120GB of the image in use, it
>> takes a lot of resource to back it up. I would much prefer some sort of
>> approach that allows me to copy only the recent changes to a rolling
>> backup/archive store I have set up for my normal (linux) desktop .
>
> Since the guest is running Windows 7, have you considered just using
> Windows Backup (it comes with Windows) and having it backup your files
> "over the network" either through Samba or using a VBox shared folder
> to your host's hard disk? A Samba route would also work for KVM. I
> don't know if KVM can do shared folders the way VBox does.
>
>> The other area that is currently puzzling me is the migration process. At
>> the moment the "disk image" that windows 7 is working with contains a
>> hardware environment that is created by Virtual Box. If I move to KVM I
>> presume that some of the devices will not be the same. Does Windows manage
>> with these changes, or would I be better creating an environment from
>> scratch (including re-installing all my key applications)
>
> Windows 7 should "reconfigure itself" on its own for the "new machine"
> -- but you may need to re-activate it with Microsoft once done (a 5
> minute process over the phone).
>
> --
> Chris
>
>
> --
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>
Does Samba require you to back of the security of Win7 down to the
point where it doesn't require Kerebos? If I remember correctly all
that will be resolved once Samba 4 gets released.
--
Shane D. Johnson
IT Administrator
Rasmussen Equipment
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