The Technology of FlyingBackup
Only small parts of your files will change on a daily basis. For this, there is no need to run a full backup every day. FlyingBackup check to see what files have changed, and updates only that part, after 1st encrypting and compressing the data, that was been changed. For database files, it's recommended to always run a full (daily) backup.
In-File Delta block technology
With In-File Delta technology, it is now possible to backup very large files daily. There are two different modes of operation available (“Differential” and “Incremental”) for In-File Delta backups. Both modes will use approximately the same amount of disk space storage on the server.
Differential Delta” will facilitate ease of restore. The delta is generated by comparing with the latest uploaded “Full” file so the delta file can grow daily and uses more bandwidth during backup. For restoration, the full file and a single delta file is required to restore the file to a specific point-in-time.
Incremental Delta” will facilitate ease of backup. The delta is generated by comparing with the latest uploaded “Full” or “Delta” file so the delta file is the smallest possible and uses the least bandwidth during backup. For restoration, the full file and all delta files up to the required point-in-time is required to restore the file to a specific point-in-time..
In-File Delta Technology
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Differential : Always use the latest uploaded “Full” file to generate the delta file.
For restore, just need the full and a delta to recover to a specific point-in-time.
The daily delta file will be larger than incremental delta and needs more bandwidth to upload
Incremental : Always use the latest uploaded file (whether “Full” or “Delta”) to generate the delta file.
Daily delta file only shows the difference between the current file and previous upload file. The incremental delta file will be smaller than the differential delta file and so should upload faster.
For restore, need to use the full and all deltas up to the point-in-time to recover to a specific point-in-time. If any delta file is corrupted, the file can only be recovered up to the point-in-time before the corrupted delta.
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