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what backup should i use

After a full backup i want to schedule weekly a backup .i dont want to be depended on more then 2 files.as i know the incremental backup creates a new smaller file .my question is what are differences betwen incremental/differntial? i want a solution that the changes since the last full backup won't be dependable on too much files
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gabiff
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gabiff
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1 Solution
 
simsjrgCommented:
You want to run differentials then. To restore using differentials you only need the most recent full backup and the most recent differential back to be back to where you were prior to your failure.
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oyvindhaCommented:
To answer your question about the difference between differential and incremental;

Differential is a partial backup that checks for differences compared to your latest full backup, while incremental compares to the the partial backups aswell.

So differential is what you are after.
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gabiffAuthor Commented:
so for differential restoration i wil need only the latest differential backup and the full backup?
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oyvindhaCommented:
That is correct :)
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gabiffAuthor Commented:
so i can delete old differential files?
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oyvindhaCommented:
Well that depends what your backup needs are. If you ever have the need to restore a file, but not to the latest version, you want to keep all version of the file.

Hope I understood your question correct.
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gabiffAuthor Commented:
for example  so if i want to restore my pc for 2 days ago and my last differential file is from yesterday and my full backup file is from a month ago..and my system was damaged so how should i restore it in further that  my windows will work smoothly
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oyvindhaCommented:
If that backup you did yesterday was the only one you had since the full backup, and you needed to atleast restore 2 days back.. you would have to roll back to the full backup.
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gabiffAuthor Commented:
the important issue for me is like that: i am doing differntial back every friday at 3am. if my pc crashes at saturday for example a hd failure. and i need all to be restored. what should i do? restore the full backup and then the only latest diffential backup? is in this case my winodows effectively will be restore to the most recent status?
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oyvindhaCommented:
That is correct. You use the full backup for a complete restore, then the differential backup to update with the latest changes.

In a client environment, I usually just have an image of my installation and worry more about rapid backups of personal files.  But it is a bit difficult to advice without more information about your usage. How often does your installation change where it would require a lot of work from your original image? How often does your personal files change?

If it's important data, I would backup my files once a day atleast. Installing a few programs might require a few hours, redoing a week of work would take.. well.. a week :P


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