I have a rather idiotic backup setup of backing system partition to another partition on the same drive.
Now the drive space exhausted there and I want to move my backup location to another box and finally start network backup.
The problem is that
vssadmin shows 25 gb of allocated shadow storage on the drive. When I move the files the shadow storage for them won't be moved so I'll lose some of the backup.
And windows says it can free this amount of space if I want to keep only the last image.
What shadow storage is used for? It seems it is only used for previous versions of image backups, so I can safely move file backups without losing anything, but not image backups.
If multiple versions of system images are only supported on NTFS volumes and not on network shares I'd rather move only file backups and leave partition backups as is.
So my questions are:
- How windows backup uses shadow storage?
- How can I move my backups to another place without losing versons and what cannot be moved?
- Is there a trustworthy information source on this?
I know how to move the files and how backup files are named, of course.