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Originally Posted by pjmpjm
"File History automatically backs up your files every hour by default, but you can select a different time ... By default, File History will be set to back up back up important folders in your user account's home folder. This includes the Desktop, Documents, Downloads, Music, Pictures, Videos folders."
The above is what I found just now, which seems to confirm my original idea as to how File History works. I keep my Calibre Library folder on my Desktop, so expected that it would be backed up regularly.
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File History does the same job of backing up files, but it follows a technique called Continous Data Backup which means the system can backup files in real-time. Similar to its older counterpart, File History supports incremental backups where successive copies of data only contain what has been changed since the last backup.
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As I said, check the differences between an incremental backup strategy, a full backup strategy and a differential backup strategy. Deciding which to use is close to a black art. Our corporate policy is a full backup weekly with incrementals the other 6 days. Backing up 120TB over the WAN to the remote SAN takes close to 20 hours.
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Full Backup captures your entire system and all the data you want to protect. Frequent full backups result in easier recovery operations.- Pros: Fast, reliable recovery
- Cons: Slower backup, lots of storage required
Incremental Backup captures only the changes made since the last incremental backup. Saves both time and storage space, and ensures that your backup is up to date. - Pros: Fast backups, low storage space
- Cons: Slower recovery, risk of data loss
Differential Backup captures only the changes made since the last full backup, not since the last differential backup. This requires more storage space, but ensures an easier, more reliable restore. Many organizations struggle with incremental vs. differential backup solutions.- Pros: Fast backups, low storage space
- Cons: Slower recovery
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