Ups Backup

Backup Windows XP offers five types of backup you define what data is backed up, as only files that have changed since the last backup security.
Some backup types use backup markers, also known as file attributes, which marks a file as having changed. When changes a file, an attribute is set in the file indicates that the file has changed since the last backup. When backup file, or reset clears the attribute.

Normal

During a normal backup, all selected files and folders are backed up. A normal backup is not based on markers to determine which files to backup. During a normal backup of the existing marks are cleared and each file is marked as a backup. Normal backups to accelerate the restoration process, because the backup files are the most current and is not necessary to restore multiple backup jobs security.

Copy

For a copy back? Above all selected files and folders are backed up. Neither seeks nor erase markers. incremental backup to create a snapshot of network data files.

Differential

During a differential backup, only selected files and folders that have a marker are backed up. It does not clear markers. Because a differential backup does not clear markers, if you did two differential backups in a row in a file and changed nothing in the file, the entire file would be a backup each time.

Incremental

During an incremental backup, only selected files and folders that have a marker are backed up. Clear the markers. Because a copy incremental backup clears markers, if you did two incremental backups in a row in a file and changed nothing in the file, the file will not backup the second time.

Journal

During a daily backup, all selected files and folders that have changed during the day are a backup. Nor seeks nor erase markers. If you want to back up all files and folders that change during the day, use a daily backup.

The combination of the backup

A strategy for effective backup is likely to combine different types of backup. Some backup types require more time for data backup, but less time to restore data. By contrast, other types of backup required less time to back up data, but more time to restore data. Combining backup types, the markers are critical. Back incremental and differential? Even the search types and rely on the markers. The following are some examples of combining different types of backup:

Copies of normal security and differentials. On Monday, a normal backup is performed, and Tuesday through Friday differential backups are performed, making copies differential backups of markers is not clear, which means that each backup includes all changes since Monday. If data becomes corrupt on Friday, only needed to restore the normal backup from Monday and the differential backup from Thursday This strategy takes longer to back up, but less time to restore.

Normal backups and incremental. On Monday, a normal backup is performed, and Tuesday through Friday incremental backups are carried out. Incremental Backups clear markers, which means that each round? To include only the files that have changed since the previous backup. If the Friday data is corrupted, you have to restore back normal? Starting Monday and all incremental backups, Tuesday through Friday. This strategy has less time to backup, but more time to restore.

Normal differential and backup copy. This strategy is the same as the first example that copies normal and incremental security used except that on Wednesday to make a backup copy. Backups include all selected files and markers is unclear or interrupt the program of regular backup. Therefore, each differential backup includes all changes since Monday. The type of copy backup performed on Wednesday, is not part of Friday to restore. Copy backups are useful when you need to create a snapshot of your data.

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Ups Backup

Ups Backup