Basic Backup types

There are many types of backup. Here we only focus on those that are most popular.

Full Backup

Full backup is the starting point for all other backups, and contains all the data in the folders and files that are selected to be backed up. Because full backup stores all files and folders, frequent full backups result in faster and simpler restore operations.

Daily backup

Daily backup copies all the files that you select that have been modified on the day the daily backup is performed. The backed-up files are not marked as having been backed up

Incremental backup

Incremental backup is another form of partial backup. Like differential backups, Incremental Backups copy a selected file to tape only if the archive bit for that file is turned on. Unlike the differential backup, however, the incremental backup clears the archive bits for the files it backs up. An incremental backup set therefore contains only files that have changed since the last full backup or the last incremental backup.

Network Backup

Network backup usually means backing up a client to a backup server, this means the client sends the files to the server and the server writes them to backup medium.

Dump Backup

Dump backups are not ordinary file by file backups. The dump backup may be a disk image, which means it must be restored to a similar disk with same disk geometry.

To be useful, you must be able to restore the backup. Very often not only the contents of file are important, but their time stamps, permissions and owners.

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