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Kudos0

Space Required for Back up

I am using the back up in Norton Security to back up to a NAS drive on my local network.

I have noticed that the space taken up by the back up is significantly more than the files in the back up set. For example the back up set from my PC (according to the back up preview) is 32,000 files - 43gb. However the space taken by the back up set on the NAS is 98,000 files and 135gb space.

Does Norton Security store more than one version of a file? So if I have a file that gets modified every week are all the old versions stored in the back up or only the latest version? Also when I delete a file on my PC does it also remove the file from the back up on the next back up operation? 

If this is the case is there a way to change this behavior so that the back up set only stores a copy of the current files on the PC?

Sorry for the simple questions but I couldn't find a detailed technical description of what back up does in the support files.

Replies

Kudos0

Re: Space Required for Back up

Hello AdrianM,

"Does Norton Security store more than one version of a file?"

No, Norton does not save historical versions, only the most recent version is backed up.

"when I delete a file on my PC does it also remove the file from the back up on the next back up operation? "

No, the back up copy remains in the backup set.

If you delete or move a file, that change will not be reflected in subsequent backups.  Let's say you have an image called 'spring flowers' in your My Pictures folder.  If at some point you decide to delete that image from your computer, it will not be automatically deleted from a previous backup.  That image, 'spring flowers' will remain in the backup unless you manually delete it from there.

Some people look at this as an inconvenience, but it is actually a safeguard, in case you accidentally delete an important file from your computer.  You will always have the backup copy to fall back on.

The same holds true for a file which you move. For example, if you were to move the image 'spring flowers' from My Pictures to another folder such as My Pictures > Garden Photos you will actually have two copies when the next backup is run.  One in the new location, My Pictures > Garden Photos and one in the original location, My Pictures. Personally I find this to be an inconvenience, but there may be some reasoning behind it I am not aware of.

"If this is the case is there a way to change this behavior so that the back up set only stores a copy of the current files on the PC?"

Not at this time. You could add your thoughts about this to the Product Suggestions board.

This is why your backup may grow larger than expected. The only way to keep a handle on the situation is to occasionally review your backup and manually delete copies of 'duplicated' files or unwanted files. I use the snap view in Windows 7 to compare my local files to the backed up files and clean up obsolete files that way.

If you are using the Norton default settings for your backup, you may be backing up some items which are not useful to you (such as application images, etc) .  If you wish to create a custom backup specific to your needs, let me know and I'll provide some easy instructions.

Hope that helps.

"Anyone who isn't confused really doesn't understand the situation."   Edward R. Murrow
Kudos0

Re: Space Required for Back up

Phil,

This is really helpful and certainly answers my key questions.

As you suggest I would like to manually compare my back up to my current files so as to remove some duplicates etc. How do I view the files that are backed up?

When I view in windows explorer you can only see the Norton encoded file name:-

Is there a way to see the actual file names and paths?

In Norton Security using the restore feature it only shows a list of the current files - not the duplicates and deleted files and still no paths unless you hover over specific files:-

Am I missing something or is there another tool I could be using?

Kudos0

Re: Space Required for Back up

Are you trying to view the backup directly from the network NAS drive?  If so, that may be the problem.

You didn't mention which Norton Product you are using but try this option based upon Norton Security Premium (NSBU).

Open My Computer (This PC)

  • Open the Norton Virtual Backup Drive. 
  • Select the backup set(s).
  • Keep expanding the paths (double clicking 'C', 'Users', etc.)  so you can can select the desired folders/files and right click to restore.

Hope that helps.

"Anyone who isn't confused really doesn't understand the situation."   Edward R. Murrow
Kudos0

Re: Space Required for Back up

Thanks again this is very helpful.

From the comparison it looks like the back-up set in the Norton drive may be corrupted in some way as the number of files in the Norton drive matches the PC more or less but the storage used is significantly different.

I am going to build a new back up set to resolve. 

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