In article <jv6194dj6rjfca1cpjhgoln9q9qvgat6l5@4ax.com>, Juan I. Cahis <jiclbchSINBASURA@attglobal.net> wrote:
> Dear friends: > > Jolly Roger <jollyroger@pobox.com> wrote: > > >> Finally, real disk partitions don't disturb Apple's Time Machine > >> (Apple's backup on OSX), and simulated disk partitions (which are > >> simple OSX files) do, unless you explicitly exclude them in Time > >> Machine's settings. > > > >Huh? Virtual Machine disk images don't "disturb" the operation of Time > >Machine in the slightest. Time Machine is able to back up virtual disk > >images just fine. The only drawback is that they are large files, so if > >you have a 40 GB disk image, Time Machine backups can add up. But Time > >Machine is designed to automatically trim old files from the backup when > >it runs low on space on the backup volume. > > That's the problem. Even if you only boot your Windows Virtual Machine > that it uses a simulated disk partition (an OSX file), and "do > nothing", Time Machine will detect your 40 GB as modified, and it will > backup it again. That will take a lot of time, and even that Time > Machine can automatically delete the old copies, you will spend a lot > of GB in your backup hard disk with some outdated copies.
Not a problem. I have a large backup drive. Hard drive space is cheap these days. If you are buying a hard drive, chances are you can afford a very large one. Also, I don't find it taking all that long to back up mine.
> Another issue that I have not tested, is the *Windows* consistence of > a backup of a simulated windows partition that it was backuped by Time > Machine when the related Windows Virtual Machine was running. Do you > have any experience regarding this issue? What happens with the backup > that Time Machine did just when Windows was modifying the registry, > for example?
Don't know, and don't care, to be honest.
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