Good information Paul and I was going to ask if
backups overwrite each other?
Thanks,
Robert
The file-by-file backup method in Windows 7 does not.
It uses a rolling scheme, where the oldest backup might
be considered for removal.
The "System Image" function I'm talking about, is not
a true backup system. What it is intended for,
is preparing a complete snapshot of something, so
that if there is say, a broken disk, you restore the
whole thing. It is simple, but it is limited in
how useful it is. Because it is quick to set up,
it's one of the cheapest ways to get started.
Doesn't take a lot of time to make one.
In other words, if you have *no* backups, you'll be
very thankful to have one of those. But, if you wanted
a safety net for individual files, it's not the way.
If you were worried about losing yesterdays work, the
System Image is not practical for that.
When I make a System Image, I move the folder to some
other place, for a rainy day. When I make a folder to
hold what the System Image dumped, I make notes about
what the backup is for. This is not a lot of extra work.
A true backup system, gives you better access to individual
files, like "I want my lunchmoney.xls file from Feb 23".
And the System Image isn't intended for that sort of thing.
You can, with a small bit of work, extract individual files.
But you don't get a convenient interface to do it with.
The file-by-file backup method, can do incremental
backups, so your second backup session takes much less
time than the first. Then, at regular intervals, so
it won't lose anything, it makes a full backup again.
Each of these is a "backup set". And when you run out
of space, the oldest backup set can be deleted to make room.
You can keep several backup sets on your external disk
before it runs out of room.
Since, by default, it uses 30% of the external disk, if
you were doing file-by-file, you find the setting to
allow it to use most of the disk. Then you're getting
your money's worth for the $100 spent on the backup drive.
This is the file-by-file backup. And it tells you something
about the 30% limit.
http://blogs.technet.com/b/filecab/archive/2009/11/23/managing-backup-disk-space.aspx
*******
If you want to read the whole series of articles on Windows Backup,
they're here.
The set of five blogs is:
Protect your files and PC with Windows 7 Backup 23 Oct 2009
http://blogs.technet.com/b/filecab/...-your-files-and-pc-with-windows-7-backup.aspx
Learn more about system image backup 31 Oct 2009
(This is the second post in a blog series on backup and recovery offerings in Windows 7.)
http://blogs.technet.com/b/filecab/archive/2009/10/31/learn-more-about-system-image-backup.aspx
Recovering your files in Windows 7 11 Nov 2009
(This is the third post in a blog series on backup and recovery offerings in Windows 7.)
http://blogs.technet.com/b/filecab/archive/2009/11/12/recovering-your-files-in-windows-7.aspx
Managing backup disk space 22 Nov 2009
(This is the fourth post in a blog series on backup and recovery offerings in Windows 7.)
http://blogs.technet.com/b/filecab/archive/2009/11/23/managing-backup-disk-space.aspx
What to do when your system misbehaves 9 Dec 2009
http://blogs.technet.com/b/filecab/archive/2009/12/09/what-to-do-when-your-system-misbehave.aspx
HTH,
Paul