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Incremental backups, How to update an existing backup
 
#1
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Greetings again.

My two prior queries were both answered quickly. (Thank you.) Here's one that has stumped me for a while ...

I regularly create backups. I'm not sure if the process I have been following for updating my pre-existing archive is correct.

Two questions:
1) When updating the archive, do I select the original archive (cleverly called bat backup on my PC) OR the most recently created increment as the archive to update?
2) I now have eleven updates to my bat! archive. When I create update number 12, must I still retain the prior eleven?

Thank you.
 
 
 
#2
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I'm creating backups too, but I create full backups. As the problem with incremental backups is that when one gets corrupted, the whole series is worthless.

Nevertheless. With incremental backups you can create a new backup with pointing to the last backup you made. That means that you've got to restore the whole series of backups when the need arises.

Another option is to make every incremental backup an add on to the first backup, that means that you only need to restore two backups. The disadvantage is, of course, that creating those bigger incremental backups takes more time. So when the time is no issue (because you're running them scheduled at night) you might pick this option. However, if the time is no issue, you might just as well create full backups.

As I said, I'm creating full backups and I'm doing that weekly with the scheduler and by naming the backup file:
D:\Mijn Backups\The Bat!\%Date="YYYYMMDD".tbk
This means that all of my backups have a unique name, that enables me to keep more backups stored on disk.
__________________________________
I'm just a user of The Bat! I don't work for Ritlabs.
 
 
 
#3
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today space is not an issue so I think whatever complications (like incremental backups) which goal is to save space are worthless.
Just copy your whole mail folder to another place or burn it and you have a full backup, it's that simple - and you don't have to use theBat for this, it's just a folder copy operation.

On my pc this is automated with a simple script which runs once every night and copies the whole TB mail folder (with a date string appended to the folder name) to a backup folder, and then deletes the oldest subfolder from the backup folder. This way I always have 3 recent full backups, when a new one is added the oldest one is deleted.

If you still want to save some space, use winrar in command line mode to compress the mail folder.
 
 
 
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